areola vs interstice

areola and interstice both are nouns.

Word	Noun	Adjective	Verb	Adverb
areola	Yes	No	No	No
interstice	Yes	No	No	No

As nouns, interstice is a hypernym of areola; that is, interstice is a word with a broader meaning than areola:

areola: small space in a tissue or body part such as the area between veins on a leaf or an insect's wing
interstice: a small structural space between tissues or parts of an organ

areola (noun)	interstice (noun)
small circular area such as that around the human nipple or an inflamed area around a pimple or insect bite	small opening between things
small space in a tissue or body part such as the area between veins on a leaf or an insect's wing	a small structural space between tissues or parts of an organ