Definition of amorphous adjective from the Oxford Advanced Learner's Dictionary

 

amorphous

 adjective
adjective
BrE BrE//əˈmɔːfəs//
 
; NAmE NAmE//əˈmɔːrfəs//
 
[usually before noun](formal)
 
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having no definite shape, form or structure synonym shapeless an amorphous mass of cells with no identity at all Word Origin mid 18th cent.: from modern Latin amorphus, from Greek amorphos ‘shapeless’ (from a- ‘without’ + morphē ‘form’) + -ous.
See the Oxford Advanced American Dictionary entry: amorphous