amenorrhoeal vs amenorrheal

amenorrhoeal and amenorrheal both are adjectives.

Word	Noun	Adjective	Verb	Adverb
amenorrhoeal	No	Yes	No	No
amenorrheal	No	Yes	No	No

As adjectives, amenorrhoeal and amenorrheal are synonyms defined as:

amenorrhoeal and amenorrheal: related to the suppression of normal menstrual flow for any reason other than pregnancy

Other synonyms of amenorrhoeal include amenorrheic, amenorrhoeic.

amenorrhoeal (adjective)	amenorrheal (adjective)
related to the suppression of normal menstrual flow for any reason other than pregnancy	related to the suppression of normal menstrual flow for any reason other than pregnancy