gestation vs physical condition

gestation and physical condition both are nouns.

Word	Noun	Adjective	Verb	Adverb
gestation	Yes	No	No	No
physical condition	Yes	No	No	No

As nouns, physical condition is a hypernym of gestation; that is, physical condition is a word with a broader meaning than gestation:

gestation: the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus
physical condition: the condition or state of the body or bodily functions

Other hypernyms of gestation include physiological condition, physiological state.

gestation (noun)	physical condition (noun)
the conception and development of an idea or plan	the condition or state of the body or bodily functions
the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus
the period during which an embryo develops (about 266 days in humans)