No:967 - labile (L. labilis unstable, from labi to glide) 1. gliding; moving from point to point over the surface; unstable; fluctuating. 2. chemically unstable.
No:968 - laceration (L. laceratio) 1. the act of tearing. 2. a torn, ragged, mangled wound.
No:969 - lacrimal pertaining to the tears.
No:970 - lactation (L. lactatio, from lactare to suckle) the period of the secretion of milk.
No:971 - laryngitis inflammation of the larynx, a condition attended with dryness and soreness of the throat, hoarseness, cough and dysphagia.
No:972 - lassitude (L. lassitudo weariness) weakness; exhaustion.
No:973 - latent period a seemingly inactive period, as that between exposure of tissue to an injurious agent and the manifestation of response, or that between the instant of stimulation and the beginning of response.
No:974 - lateral (L. lateralis) 1. denoting a position farther from the median plane or midline of the body or of a structure. 2. pertaining to a side.
No:975 - laxative (L. laxativus) an agent that acts to promote evacuation of the bowel; a cathartic or purgative.
No:976 - lenticular (L. lenticularis) 1. pertaining to or shaped like a lens. 2. pertaining to the crystalline lens. 3. pertaining to the lenticular nucleus.
No:977 - lesion (L. laesio; laedere to hurt) any pathological or traumatic discontinuity of tissue or loss of function of a part.
No:978 - lethal (L. lethalis, from lethum death) deadly, fatal.
No:979 - lethargy (Gr. lthargia drowsiness) abnormal drowsiness or stupor; a condition of indifference.
No:980 - leukaemia an acute or chronic disease of unknown cause in man and other warm-blooded animals that involves the blood-forming organs, is characterized by an abnormal increase in the number of leucocytes in the tissues of the body with or without a corresponding increase of those in the circulating blood, and is classified according of the type leucocyte most prominently involved.
No:981 - leukocytic or leucocytic pertaining to leucocytes.
No:982 - leukocytosis or leucocytosis a transient increase in the number of leucocytes in the blood, resulting from various causes, as haemorrhage, fever, infection, inflammation, etc.
No:983 - leukopenia or leucopenia (leucocyte + Gr. penia poverty) reduction in the number of leucocytes in the blood, the count being 5000 per cu. mm. or less.
No:984 - leukoplakia or leucoplakia (leuko- + Gr. plax plate + -ia) 1. a white patch on a mucous membrane that will not rub off. 2. oral.
No:985 - leukorrhea or leucorrhea (leuko- + Gr. rhoia flow) a whitish, viscid discharge from the vagina and uterine cavity.
No:986 - libido sexual desire.
No:987 - lichenification hypertrophy of the epidermis, resulting in thickening of the skin with exaggeration of the normal skin markings, giving the skin a leathery barklike appearance, which is caused by prolonged rubbing or scratching. It may arise on seemingly normal skin, or it may develop at the site of another pruritic cutaneous disorder.
No:988 - ligament a band of fibrous tissue that connects bones or cartilages, serving to support and strengthen joints.
No:989 - limbic pertaining to a limbus, or margin; forming a border around.
No:990 - linear (L. linearis) pertaining to or resembling a line.
No:991 - lipid any of a heterogeneous group of flats and fatlike substances characterized by being water-insoluble and being extractable by nonpolar (or fat) solvents such as alcohol, ether, chloroform, benzene, etc. All contain as a major constituent aliphatic hydrocarbons. The lipids, which are easily stored in the body, serve as a source of fuel, are an important constituent of cell structure, and serve other biological functions. Lipids may be considered to include fatty acids, neutral fats, waxes, and steroids. Compound lipids comprise the glycolipids, lipoproteins, and phospholipids.
No:992 - lipodystrophy (lipo- + dystrophy) 1. any disturbance of fat metabolism. 2. a group of conditions due to defective metabolism of fat, resulting in the absence of subcutaneous fat, which may be congenital or acquired and partial or total. Called also lipoatrophy and lipodystrophia.
No:993 - lipophilic having an affinity for fat; pertaining to or characterized by lipophilia.
No:994 - lipoprotein any of the lipid-protein complexes in which lipids are transported in the blood; lipoprotein particles consist of a spherical hydrophobic core of triglycerides or cholesterol esters surrounded by an amphipathic monolayer of phospholipids, cholesterol, and apolipoproteins; the four principal classes are high-density, low-density, and very-low-density lipoproteins and chylomicrons.
No:995 - liposome (lipo- + Gr. soma body) a spherical particle in an aqueous medium, formed by a lipid bilayer enclosing an aqueous compartment.
No:996 - liquifilm a thin liquid layer of coating.
No:997 - liquor 1. a liquid, especially an aqueous solution containing a medicinal substance. 2. a general term used in anatomical nomenclature for certain fluids of the body. See also solution.
No:998 - livedo a discoloured spot or patch on the skin, commonly due to passive congestion; commonly used alone to refer to l. reticularis.
No:999 - loading dose a quantity higher than the average or maintenance dose, used at the initiation of therapy to rapidly establish a desired level of the drug.
No:1000 - lobe (L. globus, from Gr. lobos) a more or less well-defined portion of any organ, especially of the brain, lungs, and glands. Lobes are demarcated by fissures, sulci, connective tissue, and by their shape.
No:1001 - local (L. localis) restricted to or pertaining to one spot or part; not general.
No:1002 - localization 1. the determination of the site or place of any process or lesion. 2. restriction to a circumscribed or limited area. 3. prelocalization.
No:1003 - lochia (Gr. lochia) the vaginal discharge that takes place during the first week or two after childbirth.
No:1004 - locomotor of or pertaining to locomotion; pertaining to or affecting the locomotive apparatus of the body.
No:1005 - locoregional the characteristic of a disease-producing organism to transfer itself, but typically to the same region of the body (a leg, the lungs, …)
No:1006 - luetic syphilitic: affected with, caused by, or pertaining to syphilis.
No:1007 - lumbago (L. lumbus loin) pain in the lumbar region.
No:1008 - lumbar pertaining to the loins, the part of the back between the thorax and the pelvis.
No:1009 - lumen (L. 'light') the cavity or channel within a tube or tubular organ.
No:1010 - luxatio dislocation.
No:1011 - lymphadenopathy (lymphaden + Gr. pathos disease) disease of the lymph nodes.
No:1012 - lymphangitis inflammation of a lymphatic vessel or vessels. Acute lymphangitis may result from spread of bacterial infection (most commonly beta-haemolytic streptococci) into the lymphatics, manifested by painful subcutaneous red streaks along the course of the vessels.
No:1013 - lymphocytic pertaining to, characterized by, or of the nature of lymphocytes.
No:1014 - lymphoma (lymph- + -oma) any neoplastic disorder of the lymphoid tissue, the term lymphoma often is used alone to denote malignant lymphoma.
No:1015 - lyophilisate the product of lyophilization ( the creation of a stable preparation of a biological substance, such as blood plasma or serum, by rapid freezing and dehydration of the frozen product under high vacuum).
No:1016 - lytic 1. pertaining to lysis or to a lysin. 2. producing lysis.