| lycoperdonosis | A persisting pneumonitis following inhalation of spores of the puffballs Lycoperdon pyriforme and L. Bovista. (05 Mar 2000) |
|---|---|
| lycophora | The 10-hooked larva of primitive tapeworms of the subclass Cestodaria. (05 Mar 2000) |
| lycopod | <botany> A plant of the genus Lycopodium. Origin: Cf. F. Lycopode. Source: Websters Dictionary (01 Mar 1998) |
| lycopodiaceous | <botany> Belonging, or relating, to the Lycopodiaceae, an order of cryptogamous plants (called also club mosses) with branching stems, and small, crowded, one-nerved, and usually pointed leaves. Source: Websters Dictionary (01 Mar 1998) |
| lycopodite | <paleontology> An old name for a fossil club moss. Source: Websters Dictionary (01 Mar 1998) |
| lycopodium | <botany> A genus of mosslike plants, the type of the order Lycopodiaceae; club moss. Lycopodium powder, a fine powder or dust composed of the spores of Lycopodium, and other plants of the order Lycopodiaceae. It is highly inflammable, and is sometimes used in the manufacture of fireworks, and the artificial representation of lightning. Origin: NL, from Gr. Wolf +, a foot. Source: Websters Dictionary (01 Mar 1998) |
| lycotropous | <botany> Campylotropous. Origin: Gr. Hook + to turn. Source: Websters Dictionary (01 Mar 1998) |
| lye | A strong caustic alkaline solution of potassium salts, obtained by leaching wood ashes. It is much used in making soap, etc. Origin: AS. Leah; akin to D. Loog, OHG. Louga, G. Lauge; cf. Icel. Laug a bath, a hot spring. Source: Websters Dictionary (01 Mar 1998) |
| Lyell | Aian. See: Lyell's disease, Lyell's syndrome. (05 Mar 2000) |
| Lyell's disease | <syndrome> A disease of infants due to group 2 phage type 17 staphylococci that produce an epidermolytic exotoxin. Superficial fine vesicles and bullae form and rupture easily, resulting in loss of large sheets of epidermis. (12 Dec 1998) |
| Lyell's syndrome | A syndrome in which a large portion of the skin becomes intensely erythematous with epidermal necrosis, and peels off in the manner of a second-degree burn, often simultaneous with the formation of flaccid bullae, resulting from drug sensitivity or of unknown cause; the level of separation is subepidermal, unlike staphylococcal scalded skin syndrome in which there is subcorneal change. Synonym: Lyell's syndrome. (05 Mar 2000) |
| lyencephala | <zoology> A group of Mammalia, including the marsupials and monotremes; so called because the corpus callosum is rudimentary. Origin: NL, fr. Gr. To loose + the brain. Source: Websters Dictionary (01 Mar 1998) |
| lyencephalous | <zoology> Pertaining to, or characteristic of, the Lyencephala. Source: Websters Dictionary (01 Mar 1998) |
| lyerman | <zoology> The cicada. Source: Websters Dictionary (01 Mar 1998) |
| lygodium | <botany> A genus of ferns with twining or climbing fronds, bearing stalked and variously-lobed divisions in pairs. Lygodium palmatum, much prized for indoor ornament, inhabits shaded and moist grassy places, from Massachusetts to Virginia and Kentucky, and sparingly southwards. Origin: NL, fr. Gr. Flexible; a willow twig + form. Source: Websters Dictionary (01 Mar 1998) |