free-swimming
English
[edit]Alternative forms
[edit]Adjective
[edit]free-swimming (not comparable)
- (biology) Able to swim about freely.
- 1885, Sir Norman Lockyer, Nature - Volume 32, page 418:
- It is a most remarkable fact that almost all these shore animals in their early development from the egg pass through free-swimming larval stages which are closely alike in form for very widely different zoological groups.
- 2008, Frank R. Spellman, Handbook of Water and Wastewater Treatment Plant Operations, page 715:
- The presence of free-swimming and stalked ciliates, some flagellates, and rotifers in mixed liquor indicates a balanced, properly settling environment.