{
Des′mid
, Des-mid′i-an
, }
[Gr.
δεσμόσ
chain +
εἶδοσ
form.]
(Bot.)
A microscopic plant of the family
Desmidiæ
, a group of unicellular algæ in which the species have a greenish color, and the cells generally appear as if they consisted of two coalescing halves.