Arrhizous :: Arrhizous (a.) Destitute of a true root, as a parasitical plant..
Endorhizous :: Endorhizous (a.) Having the radicle of the embryo sheathed by the cotyledon, through which the embryo bursts in germination, as in many monocotyledonous plants..
Exorhizous :: Exorhizous (a.) Having a radicle which is not inclosed by the cotyledons or plumule; of or relating to an exorhiza.
Polyrhizous :: Polyrhizous (a.) Having numerous roots, or rootlets..
Rhizocarpous :: Rhizocarpous (a.) Having perennial rootstocks or bulbs, but annual flowering stems; -- said of all perennial herbs..
Rhizocephala :: Rhizocephala (n. pl.) A division of Pectostraca including saclike parasites of Crustacea. They adhere by rootlike extensions of the head. See Illusration in Appendix.
Rhizodont :: Rhizodont (n.) A reptile whose teeth are rooted in sockets, as the crocodile..
Rhizopoda :: Rhizopoda (n. pl.) An extensive class of Protozoa, including those which have pseudopodia, by means of which they move about and take their food. The principal groups are Lobosa (or Am/bea), Helizoa, Radiolaria, and Foraminifera (or Reticularia). See Protozoa..
Rhizopodous :: Rhizopodous (a.) Of or pertaining to the rhizopods.
Rhizostomata :: Rhizostomata (n. pl.) A suborder of Medusae which includes very large species without marginal tentacles, but having large mouth lobes closely united at the edges. See Illust. in Appendix..