root sheath

(redirected from external root sheath)
Also found in: Dictionary, Thesaurus, Medical.
Related to external root sheath: internal root sheath, epithelial root sheath

root sheath

[′rüt ‚shēth]
(geology)
A hollow root cast.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Full browser ?