RHIZOID
rhizoid
(noun) any of various slender filaments that function as roots in mosses and ferns and fungi etc
Source: WordNet® 3.1
Etymology
Noun
rhizoid (plural rhizoids)
(botany) A rootlike structure in fungi and some plants that acts as support and/or aids the absorption of nutrients.
Adjective
rhizoid (comparative more rhizoid, superlative most rhizoid)
Resembling the root of a plant.
Source: Wiktionary
Rhi"zoid, n. Etym: [Gr. -oid.] (Bot.)
Definition: A rootlike appendage.
Source: Webster’s Unabridged Dictionary 1913 Edition