-oid

See also: oid, OID, o.i.d., oíd, -óid, öid, and ɔid

English

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”).

Pronunciation

(UK, US, Canada) IPA^(key): /-ɔɪd/
(General Australian) IPA^(key): /-oɪd/

Suffix

-oid

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

‎ellipse + ‎-oid → ‎ellipsoid

‎geo- + ‎-oid → ‎geoid
(less commonly) Of, pertaining to, or related to.
‎lympho- + ‎-oid → ‎lymphoid

‎myelo- + ‎-oid → ‎myeloid

‎aster- + ‎-oid → ‎asteroid
Added to nouns to create derogatory terms, typically referring to a particular ideology or group of people.
‎waste + ‎-oid → ‎wastoid

‎west + ‎-oid → ‎westoid

‎left + ‎-oid → ‎leftoid

‎right + ‎-oid → ‎rightoid
(category theory) Added typically to the name of an algebraic structure, to denote the horizontal categorification of that structure.
‎group + ‎-oid → ‎groupoid

‎ring + ‎-oid → ‎ringoid

‎Lie algebra + ‎-oid → ‎Lie algebroid

‎monoid + ‎-oid → ‎monoidoid

Usage notes

“-oid” may be suffixed to nouns and adjectives to form nouns and adjectives.

Synonyms

(resembling): quasi-, para-, -form/-iform, -esque, -ish, -ly, -some, -y, (restricted to casual registers) -ass, (forms adjectives from nouns only) -like

Coordinate terms

Derived terms

English terms suffixed with -oid

Translations

suffix meaning similar but not the same

Catalan: -oide (ca)
Chinese:
Mandarin: 類 / 类 (zh) (lèi) (prefix)
Dutch: -oïde (nl)
Esperanto: -oido (eo)
Finnish: -oidi (fi), -mainen (fi)
French: -oïde (fr)
Greek:
Ancient Greek: -ειδής (-eidḗs)
Interlingua: -oide
Italian: -oide (it)
Latin: -oīdēs
Old English: -hīwe, -hīwed, -hīwede
Polish: -oid m
Portuguese: -oide (pt)
Spanish: -oide (es)

Anagrams

-iod-, DIO, DOI, I do, IOD, Ido, ODI, iod-

German

Alternative forms

-oide, -oides (sometimes for substantives)
-id

Etymology

Borrowed from Latin -oīdēs, from Ancient Greek -οειδής (-oeidḗs), from εἶδος (eîdos).

Pronunciation

Audio: (file)
Audio (Germany (Berlin)): (file)

Suffix

-oid

-oid (adjective or substantive)

Usage notes

The gender of nouns in -oid often is the same as the one from the basic word: Asteroid is masculine like ἀστήρ (astḗr) and also like Stern, Metalloid is neuter like metallum and Metall. However, Ellipsoid is neuter while ellipsis and Ellipse are feminine, yet Ellipsoide is feminine too.
Common declensions of substantives are:
genitive singular -en, nominative plural -en, gender m. (e.g. Android, Asteroid, Meteoroid)

genitive singular -[e]s, nominative plural -e, gender n. (e.g. Alkaloid, Metalloid)

Synonyms

-ähnlich, -artig, -förmig, -oidisch (adjectives)

Derived terms

masculine substantives

adjectives suffixed with -oid or -id:

neuter substantives with -oid or -id:

adjectives suffixed with -id:

neuter substantives suffixed with -id:

See also:

German terms suffixed with -oid

Polish

Etymology

Etymology tree

Proto-Indo-European *weyd-der.

Ancient Greek εἶδος (eîdos)

Proto-Indo-European *-os

Proto-Indo-European *-ēs

Ancient Greek -ης (-ēs)

Ancient Greek -ειδής (-eidḗs)der.

Polish -oid

Derived from Ancient Greek -ειδής (-eidḗs).

Pronunciation

IPA^(key): /ˈɔ.it/
Rhymes: -ɔit
Syllabification: -o‧id

Suffix

-oid m

-oid
‎bakteria + ‎-oid → ‎bakteroid

Declension

Declension of -oid

	singular	plural
nominative	-oid	-oidy
genitive	-oidu	-oidów
dative	-oidowi	-oidom
accusative	-oid	-oidy
instrumental	-oidem	-oidami
locative	-oidzie	-oidach
vocative	-oidzie	-oidy