Closed hollow cylinder or sheath of leaf-like tissue surrounding and protecting the radicle (young root) in grass seedlings.

Dictionary of molecular biology. 2004.

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  • Coleorhiza — Co le*o*rhi za, n. [NL., fr. Gr. ? sheath + ? root.] A sheath in the embryo of grasses, inclosing the caulicle. Gray. [1913 Webster] …   The Collaborative International Dictionary of English

  • coleorhiza — [kō΄lē ō rī′zə, käl΄ēō rī′zə] n. pl. coleorhizae [kō΄lē ō rī′zē΄, käl΄ē ō rī′zē΄] [ModL < Gr koleos, sheath + rhiza, root] a protective root sheath of grass seedlings through which the primary root emerges …   English World dictionary

  • coleorhiza — noun (plural coleorhizae) Etymology: New Latin, from Greek koleon + New Latin rhiza Date: circa 1866 the sheath investing the radicle in some monocotyledonous plants through which the roots emerge …   New Collegiate Dictionary

  • coleorhiza — /koh lee euh ruy zeuh, kol ee /, n., pl. coleorhizae / zee/. Bot. the sheath that envelops the radicle in certain plants and that is penetrated by the root in germination. [1865 70; < NL < Gk koleó(n) sheath, scabbard + rhíza ROOT1] * * * …   Universalium

  • coleorhiza — noun A sheath like structure found in a plant seed that connects the coleoptile to the primary root and acts as a protective covering enclosing the plumule and radicle …   Wiktionary

  • coleorhiza — co·le·o·rhi·za …   English syllables

  • coleorhiza — co•le•o•rhi•za [[t]ˌkoʊ li əˈraɪ zə, ˌkɒl i [/t]] n. pl. zae ( zē). bot the sheath that encloses the primary root in embryonic grasses • Etymology: 1865–70; < NL < Gk koleó(n) sheath, scabbard +rhíza root I …   From formal English to slang

  • coleorhiza — /kɒliəˈraɪzə/ (say koleeuh ruyzuh) noun (plural coleorhizae /kɒliəˈraɪzi/ (say koleeuh ruyzee)) the sheath which envelops the radicle in certain plants, and which is penetrated by the root in germination. {New Latin, from Greek koleo(s) sheath +… …  

  • coleorhiza — A protective sheath surrounding the radicle in the grasses …   Glossary of Biotechnology

  • coleorhiza — …   Useful english dictionary

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