-oid

See also: oíd, öid, and o.i.d.

English

Etymology

Ancient Greek -ειδής (-eidḗs), -οειδής (-oeidḗs) (the ο being the last vowel of the stem to which the suffix is attached); from εἶδος (eîdos, “form, likeness”).

Suffix

-oid

Of similar form to, but not the same as. Having the likeness of. Forms adjectives and nouns.
human + ‎-oid → ‎humanoid

sterol + ‎-oid → ‎steroid

Synonyms

-like

Derived terms

► <a class='CategoryTreeLabel CategoryTreeLabelNs14 CategoryTreeLabelCategory' href='/wiki/Category:English_words_suffixed_with_-oid'>English words suffixed with -oid</a>

Translations

suffix meaning similar but not the same

Finnish: -oidi (fi), -mainen (fi)

Old English: -hīwe, -hīwed, -hīwede

Anagrams

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

German

Alternative forms

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

Etymology

From Latin -oides, from Greek -οειδής (-oeidḗs), from εἶδος (eîdos)

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

adjectives: adenoid, albuminoid, amöboid, amygdaloid, amyloid, anthropoid, arachnoid, australoid, brakteoid, bulboid, diphtheroid, ellipsoid, epileptoid, grippoid, histioid & histoid, humanoid, hyaloid, hypnoid, hysteroid, indigoid, kretinoid, lichenoid, lipoid, lymphoid, mastoid, mongoloid, negroid, organoid, osteoid, ovoid, petaloid, pithekoid, polypoid, präfixoid, rheumatoid, rhizoid, rhomboid, sarkoid, schimpansoid, schizoid, suffixoid, systemoid, tigroid, zykloid
masculine substantives: Android, Anthropoid, Asteroid, Humanoid, Meteoroid, Parasitoid, Planetoid, Rhomboid
masculine or neuter substantives: Porphyroid
neuter substantives: Affixoid, Albuminoid, Alkaloid, Amyloid, Bakterioid, Dermoid, Desmoid, Digitaloid, Ekzematoid, Ellipsoid, Eutektoid, Feldspatoid, Flavonoid, Globoid, Gruppoid, Haloid, Hyperboloid, Karotinoid (Carotinoid), Kankroid, Karzinoid, Keloid, Kolloid, Konoid, Kristalloid, Lanthanoid, Lipoid, Metalloid, Nukleoid, Opioid, Organoid, Paraboloid, Phelloid, Platinoid, Präfixoid, Prismatoid & Prismoid, Psychoid, Pyrenoid, Pyrethroid, Resinoid, Rheumatoid, Rhizoid, Rhomboid, Sigmoid, Solenoid, Sphäroid, Sphenoid, Suffixoid, Syphiloid, Systemoid, Toxoid, Trapezoid, Typhoid, Viroid, Zebroid, Zelluloid (Celluloid)
adjectives suffixed with -oid or -id: myeloid, paranoid, schizoid
neuter substantives with -oid or -id: Dermoid, Desmoid, Haloid, Pinakoid, Steroid
adjectives suffixed with -id: australid, europid, mongolid, negrid
neuter substantives suffixed with -id: Amid, Geoid, Halogenid, Ureid

See also:

► <a class='CategoryTreeLabel CategoryTreeLabelNs14 CategoryTreeLabelCategory' href='/wiki/Category:German_words_suffixed_with_-oid'>German words suffixed with -oid</a>

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