thalloid

[ thal-oid ]

adjective

, Botany, Mycology.

1. resembling or consisting of a thallus.

Word History and Origins

Origin of thalloid¹

First recorded in 1855–60; thall(us) + -oid

Example Sentences

The protonema forms a flat, lobed, thalloid structure attached to the soil by rhizoids, and the plants arise from marginal cells.

From Project Gutenberg

Rarely the thallus extends upward as a veil which surrounds the apothecia laterally and suggests how the thalloid exciple of higher families probably arose.

From Project Gutenberg

The characteristics, then, of the mosses are, that the sexual generation is leafy, the one or two asexual generations are thalloid, and that the spore-bearing generation is in parasitic connection with the sexual generation.

From Project Gutenberg

The spore on germination forms a short filament which soon broadens out into the thalloid protonema.

From Project Gutenberg

The Marchantiales are a series of thalloid forms, in which the structure of the thallus is specialized to enable them to live in more exposed situations.

From Project Gutenberg