-oid
suffixCA, US, UK, SC /-ɔɪ̯d/ · AU, NZ /-oɪ̯d/
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”).
Morpheme Resembling; having the likeness of (usually including the concept of not being the same despite the likeness, but counterexamples exist).
- human + -oid → humanoid
- sterol + -oid → steroid
2 more examples
- ellipse + -oid → ellipsoid
- geo- + -oid → geoid
Morpheme, Uncommon Of, pertaining to, or related to.
- lympho- + -oid → lymphoid
- myelo- + -oid → myeloid
1 more example
- aster- + -oid → asteroid
Morpheme Added to nouns to create derogatory terms, typically referring to a particular ideology or group of people.
- waste + -oid → wastoid
- west + -oid → westoid
3 more examples
- left + -oid → leftoid
- right + -oid → rightoid
- goblin + -oid → goblinoid
Category theory, Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences Morpheme Added typically to the name of an algebraic structure, to denote the horizontal categorification of that structure.
- group + -oid → groupoid
- ring + -oid → ringoid
2 more examples
- Lie algebra + -oid → Lie algebroid
- monoid + -oid → monoidoid