[ L ]

• LEU  leucine; leucovorin; leukocyte equivalent unit
• Leu, leu  leucine
• Leuc  leukocyte
• Leu-CAM  leukocyte cell adhesion molecule
• LeuRS  leucyl ribonucleic acid synthetase
• LEUT  leucine transport
• LEV  levamisole
• LEW  Lewis [rat]
• L/ext  lower extremity
• LF  labile factor; lactoferrin; laryngofissure; Lassa fever; latex fixation; left foot; left forearm; lethal factor; leukotactic factor; ligamentum flavum; limit of flocculation; long frequency; low fat [diet]; low flow; low forceps; low frequency; lymphatic filariasis
• L/F  Latin female
• Lf  limit of flocculation
• Lf  lactoferrin; low frequency
• LFA  left femoral artery; left frontal craniotomy; left fronto-anterior [fetal position]; leukocyte function associated antigen; leukotactic factor activity; logical framework analysis; low-friction arthroplasty; lymphocyte function-associated antigen
• LFAB  lipid-associated formation of amphotericin B
• LFB  luxol fast blue [stain]
• LFBMA  lattice function biological movement artifacts
• LFC  living female child; low fat and cholesterol [diet]
• LFD  lactose-free diet; large for date [fetus]; late fetal death; lateral facial dysplasia; least fatal dose; local field potential; low-fat diet; low-fiber diet; low forceps delivery
• LFE  local frequency estimation; low frequency enhancement [imaging]
• LFER  linear free-energy relationship
• LFH  left femoral hernia
• LFHL  low-frequency hearing loss
• LFL  left frontolateral; leukocyte feeder layer; lower flammable limit; lower frequency limit
• LFN  lactoferrin
• L-[form]  a defective bacterial variant that can multiply on hypertonic medium
• LFP  left frontoposterior [fetal position]
• LFPPV  low-frequency positive pressure ventilation
• LFPS  Licentiate of the Faculty of Physicians and Surgeons
• LFR  lymphoid follicular reticulosis
• LFS  lateral facet syndrome; latest finishing shift; Li-Fraumeni syndrome; limbic forebrain structure; liver function series
• LFSE  ligand field-stabilizing energy
• LFT  latex fixation test; latex flocculation test; left fronto-transverse [fetal position]; liver function test; low-frequency tetanus; low-frequency transduction; low-frequency transfer; lung function test
• LFU  lipid fluidity unit
• LFV  large field of view; Lassa fever virus; low-frequency ventilation
• LFx  linear fracture
• LG  lactoglobulin; lamellar granule; laryngectomy; left gluteal; Lennox-Gastaut [syndrome]; leucylglycine; linguogingival; lipoglycopeptide; liver graft; low glucose; lymphatic gland
• Lg  large; leg
• LGA  large for gestational age; left gastric artery; low grade astrocytoma
• LGALS  lecithin, galactoside-binding, soluble
• LGB  Landry-Guillain-Barre [syndrome]; lateral geniculate body
• LGBS  Landry-Guillain-Barre syndrome
• LGD  limb girdle dystrophy; limit grid displacement; low grade dysplasia
• LGE  Langat encephalitis
• LGF  lateral giant fiber
• LGH  lactogenic hormone
• LGI  large glucagon immunoreactivity; low gastrointestinal; lower gastrointestinal
• LGIB  low gastrointestinal bleeding
• LGIC  ligand gated ion channel
• LGL  large granular leukocyte; large granular lymphocyte; Lown-Ganong-Levine [syndrome]
• LGL-NK  large granular lymphocyte-natural killer
• LGM  left gluteus medius
• 3LGM  three level graph-based model
• LGMD  limb-girdle muscular dystrophy
• LGN  lateral geniculate nucleus; lateral glomerulonephritis
• LGP  labioglossopharyngeal
• LGS  Langer-Giedion syndrome; Lennox-Gastaut syndrome; limb girdle syndrome
• LGSIL  low-grade squamous intraepithelial lesions
• LGSS  low-grade stromal sarcoma
• LGT  late generalized tuberculosis
• LGTI  lower genital tract infection
• LGTV  Langat virus
• LGV  large granular vesicle; lymphogranuloma venereum
• LGVHD  lethal graft-versus-host disease
• LgX  lymphogranulomatosis X
• LH  late healing; lateral habecular [nucleus]; lateral hypothalamic [syndrome]; lateral hypothalamus; left hand; left heart; left hemisphere; left hyperphoria; liver homogenate; loop of Henle; lower half; lues hereditaria; lung homogenate; luteinizing hormone; Lyon hypertensive [rat]
• L/H  lung-to-heart [ratio]
• LHA  lateral hypothalamic area; lay health advisor; left hepatic artery; low height for age
• LHB  long head of biceps [muscle]; luteinizing hormone beta chain
• LHBV  left heart blood volume
• LHC  Langerhans cell histiocytosis; left heart catheterization; left hypochondrium; light-harvesting complex; Local Health Council
• LHCGR  luteinizing hormone-choriogonadotropin receptor
• LHD  lateral head displacement [sperm]
• LHe  liquid helium
• LHEG  local healthcare executive group
• LHF  left heart failure
• LHFA  lung Hageman factor activator
• LHG  left hand grip; localized hemolysis in gel
• LHI  laboratory for healthcare informatics; lipid hydrocarbon inclusion; local health jurisdiction
• LHIPS  Local Heparin Infusion Pre-Stenting [trial]
• LHL  left hepatic lobe
• LHM  lysuride hydrogen maleate
• LHMP  Life Health Monitoring Program
• LHN  lateral hypothalamic nucleus
• LHNCBC  Lister Hill National Center for Biomedical Communication
• LHON  Leber hereditary optic neuropathy
• LHP  lifetime health plan
• LHPZ  low high-pressure zone
• LHR  leukocyte histamine release; lifetime health record; lymph node homing receptor
• L-hr  lumen-hour
• LHRF  luteinizing hormone-releasing factor
• LHRH, LH-RH  luteinizing hormone-releasing hormone
• LHRHR  luteinizing hormone-releasing hormone receptor
• LHS  left hand side; left heart strain; left heelstrike; Losartan Hemodynamic Study; library of health sciences; Lung Heart Study; lymphatic/hematopoietic system
• LHT  left hypertropia; Lifestyle Heart Trial
• LHV  left hepatic vein
• LI  labeling index; lactose intolerance; lacunar infarct; lamellar ichthyosis; Langerhans islet; large intestine; Leptospira icterohaemorrhagiae; linguoincisal; link interface [telemedicine]; lithogenic index; low impulsiveness
• L&I  liver and iron
• Li  a blood group system; labrale inferius; lithium
• L-I  late inspiratory
• LIA  Laser Institute of America; left iliac artery; leukemia-associated inhibitory activity; lock-in amplifier; lymphocyte-induced angiogenesis; lysine iron agar
• LIAF  laser-induced arterial fluorescence; lymphocyte-induced angiogenesis factor
• LIAFI  late infantile amaurotic familial idiocy
• Lib  a pound [Lat. libra]
• LIBC  latent iron-binding capacity
• LIC  left internal carotid [artery]; left interventricular coronary [artery]; limiting isorrheic concentration; link interface connector [telemedicine]; local intravascular coagulation
• Lic  licentiate
• LICA  left internal carotid artery
• LICM  left intercostal margin
• LicMed  Licentiate in Medicine
• LICS  left intercostal space
• LICU  laparoscopic intracorporeal ultrasound
• LID  large intraluminal density; late immunoglobulin deficiency; lymphocytic infiltrative disease
• LIF  laser-induced fluorescence; left iliac fossa; left index finger; leukemia-inhibiting factor; leukocyte inhibitory factor; leukocytosis-inducing factor; light-induced fluorescence
• LIFE  lifestyle intervention, food, and exercise program; Losartan Intervention for Endpoint Reduction in Hypertension [trial]; lung imaging fluorescence endoscope
• LIFO  last in, first out
• LIFR  leukemia inhibitory factor receptor
• LIFT  late intervention following thrombolysis; lymphocyte immunofluorescence test
• Lig  ligament; ligation
• LIH  left inguinal hernia
• LIHA  low impulsiveness, high anxiety
• LIHFE  living with heart failure [questionnaire]
• LIHPS  local infusion of heparin prior to stenting
• LIJ  left internal jugular [vein]
• LILA  low impulsiveness, low anxiety
• LILT  low-intensity laser therapy
• LIM  line isolation monitor
• Lim  limit, limited
• LIMA  left internal mammary artery
• LIME  Leeds interactive medical education [UK]
• LIMIT  Laboratory for Integrated Medical Interface Technology; Leicester Intravenous Magnesium Intervention Trial
• LIMIT-AMI  Double Blind, Placebo-Controlled, Multicenter Angiographic Trial of RhuMAb CD 18 in Acute Myocardial Infarction
• LIMITS  Liquemin in Myocardial Infarction during Thrombolysis with Saruplase [trial]
• LIMM  lethal infantile mitochondrial myopathy
• LIN  linear statistical classifier
• LINAC  linear accelerator
• LINC  laboratory instrumentation computer
• LINE  long interspersed repetitive element
• Linim, lin  liniment
• LINNET  [medical] library information network
• LIO  left inferior oblique
• LIP  lipase; lipocortin; lithium-induced polydipsia; lower inflection point; lymphoid or lymphocytic interstitial pneumonitis
• Lip  lipoate
• LIPA  line probe assay
• LIPB  lipase B
• LIPD  lipase D
• LIPID  Long-Term Intervention with Pravastatin in Ischemic Disease [trial]
• LipoMM  lipomyelomeningocele
• LIPOX  lipoxygenase
• LIPP  laser-induced pressure pulse
• LIPS  Lescol Intervention Prevention Study
• LIPV  left inferior pulmonary vein; Lipovnik virus
• LIQ  low inner quadrant
• Liq  liquid [Lat. liquor]
• Liq dr  liquid dram
• Liq oz  liquid ounce
• Liq pt  liquid pint
• Liq qt  liquid quart
• LIR  left iliac region; left inferior rectus
• LIRBM  liver, iron, red bone marrow
• LIS  laboratory information system; lateral intercellular space; learning and intelligent system; left intercostal space; library information service; lissencephaly; lobular in situ; locked-in syndrome; low intermittent suction; low ionic strength
• LISA  Lescol in Severe Atherosclerosis [trial]; less invasive surgical approach; Library and Information Science Abstracts
• LISF  linear least square fit
• LISP  List Processing Language
• LISREL  linear structural relations
• LISS  less invasive stabilization system; low-ionic-strength saline
• LISU  library and information statistics unit
• Li/SVO  lithium silver vanadium oxide [defibrillator battery]
• LIT  Leiden Intervention Trial [with vegetarian diet for coronary atherosclerosis]; liver infusion tryptose; local immune therapy; Lopressor Intervention Trial
• LITA  left internal thoracic artery; Library and Information Technology Association
• LITE  low-intensity treadmill exercise [protocol]
• LITT  laser-induced interstitial thermotherapy; laser-induced thermal therapy; laser-induced thermography or thermotherapy
• LIV  left innominate vein; louping ill virus
• Liv  live, living
• LIV-BP  leucine, isoleucine, and valine-binding protein
• LIVC  left inferior vena cava
• LIVE  Left Ventricular Hypertrophy: Indapamide vs Enalapril [trial]
• LIVEN  linear inflammatory verrucous epidermal nevus
• LJ  Lowenstein-Jensen [medium]
• LJAV  Landjia virus
• LJI  List of Journals Indexed [in Index Medicus]
• LJM  limited joint mobility; Lowenstein-Jensen medium
• LJNV  Lanjan virus
• LJV  La Joya virus
• LK  lamellar keratoplasty; Landry-Kussmaul [syndrome]; left kidney; lichenoid keratosis; lymphokine
• Lkc  leukocyte
• Lkcs  leukocytes
• LKKS  liver, kidneys, spleen
• LKM  liver-kidney microsomal [antibody]
• LKP  lamellar keratoplasty
• LKS  Landau-Kleffner syndrome; liver, kidneys, spleen
• LKSB  liver, kidney, spleen, bladder
• LKV  laked kanamycin vancomycin [agar]
• LL  large lymphocyte; lateral lemniscus; left lateral; left leg; left lower; left lung; lepromatous [in Ridley-Jopling Hansen disease classification]; lepromatous leprosy; lipoprotein lipase; loudness level; lower [eye]lid; lower limb; lower lip; lower lobe; lumbar length; lymphocytic lymphoma; lymphoid leukemia; lysolecithin
• LLA  left lung apex; limulus lysate assay; lipid-lowering agent
• LLAEP  long latency auditory evoked potential
• LLam  lumbar laminectomy
• LLAT  left lateral; lysolecithin aminotransferase
• L lat  left lateral
• LLB  left lateral border; long-leg brace

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