Mid 19th century; earliest use found in John William Griffith (?1819–1901). From gangli- + -oid. Compare post-classical Latin ganglioides, Byzantine Greek γαγγλιοειδής, and also ancient Greek γαγγλιώδης.
Definition of ganglioid in US English:
ganglioid
adjectiveˈɡaŋɡlɪɔɪd
Biology Medicine
Resembling a ganglion or that of a ganglion.
Origin
Mid 19th century; earliest use found in John William Griffith (?1819–1901). From gangli- + -oid. Compare post-classical Latin ganglioides, Byzantine Greek γαγγλιοειδής, and also ancient Greek γαγγλιώδης.