| lith | A joint or limb; a division; a member; a part formed by growth, and articulated to, or symmetrical with, other parts. Origin: AS. Li. Source: Websters Dictionary (01 Mar 1998) |
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| lithaemia | <medicine> A condition in which uric (lithic) acid is present in the blood. Origin: NL, fr. Gr. Stone + blood. Source: Websters Dictionary (01 Mar 1998) |
| lithagogue | <medicine> A medicine having, or supposed to have, the power of expelling calculous matter with the urine. Origin: Gr. Stone + leading. Source: Websters Dictionary (01 Mar 1998) |
| litharge | <chemistry> Lead monoxide; a yellowish red substance, obtained as an amorphous powder, or crystallized in fine scales, by heating lead moderately in a current of air or by calcining lead nitrate or carbonate. It is used in making flint glass, in glazing earthenware, in making red lead minium, etc. Called also massicot. Origin: OE. Litarge, F. Litharge, L. Lithargyrus, Gr. The scum or foam of silver; stone + silver. Litharge is found in silverbearing lead ore. Source: Websters Dictionary (01 Mar 1998) |
| lithargyrum | <chemistry> Crystallized litharge, obtained by fusion in the form of fine yellow scales. Origin: NL. See Litharge. Source: Websters Dictionary (01 Mar 1998) |
| lithate | <medicine> A salt of lithic or uric acid; a urate. Alternative forms: lithiate. Source: Websters Dictionary (01 Mar 1998) |
| lithectomy | Synonym: lithotomy. Origin: Litho-+ G. Ektome, excision (05 Mar 2000) |
| lithia | <chemistry> The oxide of lithium; a strong alkaline caustic similar to potash and soda, but weaker. See Lithium. Lithia emerald. See Hiddenite. Origin: NL, from Gr. Stone. Source: Websters Dictionary (01 Mar 1998) |
| lithiasis | <medicine> The formation of stony concretions or calculi in any part of the body, especially in the bladder and urinary passages. Origin: NL, fr. Gr, fr. Stone. Source: Websters Dictionary (01 Mar 1998) |
| lithic | 1. Of or pertaining to stone; as, lithic architecture. 2. <medicine> Pertaining to the formation of uric-acid concretions (stone) in the bladder and other parts of the body; as, lithic diathesis. <medicine> LIthic acid, uric acid. See Uric acid, under Uric. Origin: Gr. Of or belonging to stones, fr. Stone: cf. F. Lithique. <medicine> A medicine which tends to prevent stone in the bladder. <chemistry> Pertaining to or denoting lithium or some of its compounds. Origin: From Lithium. Source: Websters Dictionary (01 Mar 1998) |
| lithic acid | <biochemistry> The final product of nitrogenous excretion in animals that require to conserve water, such as terrestrial insects or have limited storage space, such as birds and their eggs. Uric acid has very low water solubility and crystals may be deposited in, for example: butterflies wings to impart irridescence. Uric acid, a crystalline body, present in small quantity in the urine of man and most mammals. Combined in the form of urate of ammonia, it is the chief constituent of the urine of birds and reptiles, forming the white part. Traces of it are also found in the various organs of the body. It is likewise a common constituent, either as the free acid or as a urate, of urinary or renal calculi and of the so-called gouty concretions. From acid urines, uric acid is frequently deposited, on standing in a cool place, in the form of a reddish yellow sediment, nearly always crystalline. Chemically, it is composed of carbon, hydrogen, nitrogen, and oxygen, and by decomposition yields urea, among other products. It can be made synthetically by heating together urea and glycocoll. It was formerly called also lithic acid, in allusion to its occurrence in stone, or calculus. See: tophus. Structure: C5H4N4O3 Source: Websters Dictionary (18 Nov 1997) |
| lithiophilite | <chemical> A phosphate of manganese and lithium; a variety of triphylite. Origin: Lithium + Gr. Friend. Source: Websters Dictionary (01 Mar 1998) |
| lithium | The lightest alkali metal, although it has the largest hydrated cation. Important as an antidepressant and is thought to act by inhibiting the regeneration of inositol from IP3 and thus reducing the efficiency of the phosphatidyl inositol signalling pathways. (18 Nov 1997) |
| lithium bromide | LiBr;a white deliquescent powder, used as a sedative and hypnotic. (05 Mar 2000) |
| lithium carbonate | This compound is used to treat manic depression. (09 Oct 1997) |