facultative

Words with a similar base: facultative

'facultative'

[facultative.a.01] as in: of or relating to the mental faculties

'facultative'

[facultative.a.02] as in: able to exist under more than one set of conditions

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Examples:
a facultative parasite can exist as a parasite or a saprophyte

'facultative'

[facultative.s.01] as in: granting a privilege or permission or power to do or not do something

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Examples:
a facultative enactment

'facultative'

[facultative.s.02] as in: not compulsory

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Examples:
facultative courses in the sciences