ˌarəˈmȯrfəsə̇s sometimes -ˌmȯrˈfō- noun
( plural aromorpho·ses -ˌsēz)
Etymology: New Latin, from aro- (from Greek ara, ar there and then, straightway; also, interrogative and connective particle) + morphosis; akin to Lithuanian ir̃ and, also, ar̃, interrogative particle
: biological evolution marked by general increase in degree of organization without sharp specialization — compare allomorphosis