facultative

One entry found for facultative.

Main Entry: fac·ul·ta·tive
Pronunciation: 'fa-k&l-"tA-tiv, British -t&-tiv
Function: adjective
1 a : of or relating to the grant of permission, authority, or privilege <facultative legislation> b : OPTIONAL
2 : of or relating to a mental faculty
3 a : taking place under some conditions but not under others <facultative diapause> b : exhibiting an indicated lifestyle under some environmental conditions but not under others <facultative anaerobes>
- fac·ul·ta·tive·ly adverb