| rhizanthous | <botany> Producing flowers from a rootstock, or apparently from a root. Origin: Gr. Root + flower. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| rhizine | <botany> A rootlike filament or hair growing from the stems of mosses or on lichens; a rhizoid. Origin: Gr. Root. Source: Websters Dictionary (01 Mar 1998) |
| rhizo- | Combining form denoting root. Origin: G. Rhiza (05 Mar 2000) |
| rhizobia | <microbiology> Bacteria in a symbiotic relationship with leguminous plants that results in nitrogen fixation. (23 Aug 1998) |
| rhizobiaceae | A family of gram-negative bacteria which are saprophytes, symbionts, or plant pathogens. (12 Dec 1998) |
| Rhizobium | <bacteria> Gram-negative bacterium that fixes nitrogen in association with roots of some higher plants, notably legumes. Forms root nodules, in which it is converted to the nitrogen fixing bacteroid form. (18 Nov 1997) |
| rhizobium leguminosarum | A species of gram-negative, aerobic bacteria that causes formation of root nodules on some, but not all, types of field pea, lentil, kidney bean, and clover. (12 Dec 1998) |
| rhizobium meliloti | A species of gram-negative, aerobic bacteria that causes formation of root nodules on some, but not all, types of sweet clover, alfalfa, and fenugreek. (12 Dec 1998) |
| rhizocarpous | <botany> Having perennial rootstocks or bulbs, but annual flowering stems; said of all perennial herbs. Origin: Gr. Root + fruit. Source: Websters Dictionary (01 Mar 1998) |
| rhizocephala | <zoology> A division of Pectostraca including saclike parasites of Crustacea. They adhere by rootlike extensions of the head. Origin: NL, fr. Gr. Root + head. Source: Websters Dictionary (01 Mar 1998) |
| rhizoctonia | A deuteromycetous fungal genus, order agonomycetales, that is an important plant pathogen affecting potatoes and other plants. (12 Dec 1998) |
| rhizodont | <zoology> A reptile whose teeth are rooted in sockets, as the crocodile. Origin: Gr. Root +, a tooth. Source: Websters Dictionary (01 Mar 1998) |
| rhizogan | <botany> Prodicing roots. Origin: Gr. Root + -gen: cf. F. Rhizogene. Source: Websters Dictionary (01 Mar 1998) |
| rhizogen | <botany> One of a proposed class of flowering plants growning on the roots of other plants and destitute of green foliage. Source: Websters Dictionary (01 Mar 1998) |
| rhizoid | <biology> Portion of a cell or organism that serves as a basal anchor to the substratum. (23 Aug 1998) |