1840, from biology + -ical. Biological time clock attested from 1955; perhaps not particularly of man reproductive urges until c.1991. Associated: Biologically.
regarding biology or even to life and living things
- (of a parent or son or daughter) related by bloodstream; genetically related
- Of or associated with biology.
(a.) Of or concerning biology.
The nasty field that dissolved any type of biological entity was one of the government's latest controversial creations.