zoological science vs estivation

zoological science and estivation both are nouns.

Word	Noun	Adjective	Verb	Adverb
zoological science	Yes	No	No	No
estivation	Yes	No	No	No

zoological science (noun)	estivation (noun)
the branch of biology that studies animals	(botany) the arrangement of sepals and petals in a flower bud before it opens
	(zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period