Definify.com
Webster 1913 Edition
Heterocyst
Het′er-o-cyst
,Noun.
[
Hetero-
+ cyst
.] (Bot.)
A cell larger than the others, and of different appearance, occurring in certain algæ related to nostoc.
Definition 2024
heterocyst
heterocyst
English
Noun
heterocyst (plural heterocysts)
- A specialized nitrogen-fixing cell formed by some filamentous cyanobacteria.