'Thalloid' definitions:

Definition of 'thalloid'

From: WordNet
adjective
Of or relating to or resembling or consisting of a thallus

Definition of 'Thalloid'

From: GCIDE
  • Thalloid \Thal"loid\, a. [Thallus + -oid.] (Bot.) Resembling, or consisting of, thallus. [1913 Webster]