Meaning

adjective having no definite form or distinct shape

adjective lacking the system or structure characteristic of living bodies

adjective without real or apparent crystalline form

originFrom Ancient Greek ἄμορφος (ámorphos, “without form, shapeless, deformed”) (itself from ἀ- (a-, “without”) + μορφή (morphḗ, “form”) + -ous. By surface analysis, a- + -morphous.

Etymology from Wiktionary, CC BY-SA 3.0