-oid - Wiktionary, the free dictionary

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”).

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

-oid

1. 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. (less commonly) Of, pertaining to, or related to.

   ‎lympho- + ‎-oid → ‎lymphoid

   ‎myelo- + ‎-oid → ‎myeloid

4. Added to nouns to create derogatory terms, typically referring to a particular ideology or group of people, by means of analogy to psychological classifications such as schizoid.

   ‎waste + ‎-oid → ‎wastoid

   ‎female + ‎-oid → ‎femoid

   ‎left + ‎-oid → ‎leftoid

   ‎right + ‎-oid → ‎rightoid

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

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

• usneoid

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

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

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

-oid

1. -oid (adjective or substantive)

• 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)

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

• 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:

Derived from Ancient Greek -ειδής (-eidḗs).

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

-oid m

1. -oid

   ‎bakteria + ‎-oid → ‎bakteroid

or

• -oid in Polish dictionaries at PWN