trilateral vs reciprocal

trilateral and reciprocal both are nouns.

Word	Noun	Adjective	Verb	Adverb
trilateral	Yes	Yes	No	No
reciprocal	Yes	Yes	No	No

trilateral (noun)	reciprocal (noun)
a three-sided polygon	hybridization involving a pair of crosses that reverse the sexes associated with each genotype
	(mathematics) one of a pair of numbers whose product is 1: the reciprocal of 2/3 is 3/2; the multiplicative inverse of 7 is 1/7
	something (a term or expression or concept) that has an inverse relation to something else

trilateral (adjective)	reciprocal (adjective)
having three sides	concerning each of two or more persons or things; especially given or done in return
involving three parties	of or relating to the multiplicative inverse of a quantity or function