-oid
//-oɪd// suffix
suffix ·Uncommon ·Advanced level
Definitions
Suffix
- 1 Resembling; having the likeness of (usually including the concept of not being the same despite the likeness, but counterexamples exist). morpheme
"human + -oid → humanoid"
- 2 Of, pertaining to, or related to. morpheme, uncommon
"lympho- + -oid → lymphoid"
- 3 Added to nouns to create derogatory terms, typically referring to a particular ideology or group of people. morpheme
"waste + -oid → wastoid"
- 4 Added typically to the name of an algebraic structure, to denote the horizontal categorification of that structure. morpheme
"group + -oid → groupoid"
Example
More examples"Lie algebra + -oid → Lie algebroid"
Etymology
Learned borrowing from Latin -oīdēs, from Ancient Greek -ο-ειδής (-o-eidḗs) (the ο being the last vowel of the stem to which the suffix is attached); from εἶδος (eîdos, “form, likeness”).
More for "-oid"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.