isopiestic line vs isopieze

isopiestic line and isopieze both are nouns.

Word	Noun	Adjective	Verb	Adverb
isopiestic line	Yes	No	No	No
isopieze	Yes	No	No	No

As nouns, isopiestic line and isopieze are synonyms defined as:

isopiestic line and isopieze: a line on a map connecting places with equal ground water pressure.

isopiestic line (noun)	isopieze (noun)
a line on a map connecting places with equal ground water pressure.	a line on a map connecting places with equal ground water pressure.