| herbicides, urea | Herbicides which owe their activity to the urea moiety in the molecule. (12 Dec 1998) |
|---|---|
| herbivora | <zoology> An extensive division of Mammalia. It formerly included the Proboscidea, Hyracoidea, Perissodactyla, and Artiodactyla, but by later writers it is generally restricted to the two latter groups (Ungulata). They feed almost exclusively upon vegetation. Origin: NL, fr. L. Herba herb + vorare to devour. Source: Websters Dictionary (01 Mar 1998) |
| herbivore | <biology, zoology> An animal that consumes herbaceous vegetation. (09 Oct 1997) |
| herbivorous | <zoology> Eating plants; of or pertaining to the Herbivora. Source: Websters Dictionary (01 Mar 1998) |
| herbivory | <biology> The consumption of herbaceous vegetation. (09 Oct 1997) |
| herborisation | 1. The act of herborizing. 2. The figure of plants in minerals or fossils. Origin: F. Herborisation. Source: Websters Dictionary (01 Mar 1998) |
| herborise | To search for plants, or new species of plants, with a view to classifying them. "He herborized as he traveled." (W. Tooke) Origin: F. Herboriser, for herbariser, fr. L. Herbarium. See Hebrarium. To form the figures of plants in; said in reference to minerals. See Arborized. "Herborized stones contain fine mosses." (Fourcroy (Trans)) Source: Websters Dictionary (01 Mar 1998) |
| herbs | Any plant designated as herb by any source. Formerly the term designated those angiosperms that have little or no woody tissue and die at the end of the growing season, especially in the temperate zones where winter cold suspends plant growth. It includes also plants used for their aromatic, savory, or medicinal properties. (12 Dec 1998) |
| Herbst | Ernst F.G., German anatomist, 1803-1893. See: Herbst's corpuscles. (05 Mar 2000) |
| Herbst's corpuscles | Tactile corpuscle's, resembling pacinian corpuscle's, but much smaller; found in birds. (05 Mar 2000) |
| hercogamous | <botany> Not capable of self-fertilization; said of hermaphrodite flowers in which some structural obstacle forbids autogamy. Origin: Gr. A fence + marriage. Source: Websters Dictionary (01 Mar 1998) |
| hercules | 1. A hero, fabled to have been the son of Jupiter and Alcmena, and celebrated for great strength, especially. For the accomplishment of his twelve great tasks or "labors." 2. <astronomy> A constellation in the northern hemisphere, near Lyra. <zoology> Hercules' beetle, any species of Dynastes, an American genus of very large lamellicorn beetles, especially. D. Hercules of South America, which grows to a length of six inches. Hercules' club. <botany> An ornamental tree of the West Indies (Zanthoxylum Clava-Herculis), of the same genus with the prickly ash. A variety of the common gourd (Lagenaria vulgaris). Its fruit sometimes exceeds five feet in length. The Angelica tree. See Angelica. Hercules powder, an explosive containing nitroglycerin; used for blasting. Source: Websters Dictionary (01 Mar 1998) |
| herculin | <protein> Product of the muscle regulatory gene Myf 6. Synonym: muscle regulatory factor 4. (18 Nov 1997) |
| herd | 1. A number of beasts assembled together; as, a herd of horses, oxen, cattle, camels, elephants, deer, or swine; a particular stock or family of cattle. "The lowing herd wind slowly o'er the lea." (Gray) Herd is distinguished from flock, as being chiefly applied to the larger animals. A number of cattle, when driven to market, is called a drove. 2. A crowd of low people; a rabble. "But far more numerous was the herd of such who think too little and who talk too much." (Dryden) "You can never interest the common herd in the abstract question. <botany>" (Coleridge) Herd's grass, one of several species of grass, highly esteemed for hay. See Grass. Origin: OE. Herd, heord, AS. Heord; akin to OHG. Herta,G. Herde, Icel. Hjor, Sw. Hjord, Dan. Hiord, Goth. Hairda; cf. Skr. Cardha troop, host. Source: Websters Dictionary (01 Mar 1998) |
| herd immunity | <immunology> Resistance of a group to a pathogen due to immunity of a large proportion of the group to that pathogen. (09 Oct 1997) |