English

Suffix

-oid

1. Of similar form to, but not the same as. Having the likeness of. Suffix appended to various words to make an adjective form.

   human + ‎-oid → ‎humanoid

   sterol + ‎-oid → ‎steroid

Synonyms

• -like

Derived terms

Translations

See also

German

Etymology

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

Alternative forms

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

Suffix

-oid

1. -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: