Word.ws English Dictionary

unioid

unioid adjective: resembling or characteristic of the unios.

Adjective

unioid (comparative more unioid, superlative most unioid)

  1. (rare) Resembling or characteristic of the unios.

Noun

unioid (plural unioids)

  1. (rare) Synonym of unionoid.
    • Thirty-five bivalve taxa from the Hells Canyon locality are discussed. Of these, seven are new: the mytilid Mysidiella cordillerana n. sp., the limacean Antiquilima vallieri n. sp., the true oyster Liostrea newelli n. sp., the pectinacean Crenamussium concentricum n. gen. and sp., the unioid...1987 July, Cathryn R. Newton, Michael T. Whalen, Joel B. Thompson, Nienke Prins, David Delalla, “Systematics and Paleoecology of Norian (Late Triassic) Bivalves from a Tropical Island Arc: Wallowa...
    • Species of the oldest freshwater bivalve genus, the unioid Archanodon, are well known from Frasnian strata in New York State (Bridge et al. 1986).1996, George R. McGhee, Jr., “Victims and Survivors”, in The Late Devonian Mass Extinction: The Frasnian/Famennian Crisis (Critical Moments in Paleobiology and Earth History Series), New York, N.Y....
    Synonyms:
    unionoid

Synonyms of unioid

Forms of unioid

Adjective
comparativemore unioid
superlativemost unioid
Noun
pluralunioids

Origin of unioid

From unio + -oid. Compare unionoid.

Questions about unioid

What does unioid mean?
Unioid means resembling or characteristic of the unios.
What part of speech is unioid?
Unioid can be an adjective or a noun.

Words near unioid in the dictionary

  1. uninymic
  2. uninyms
  3. unio
  4. uniocular
  5. uniodized
  6. unioid
  7. unioids
  8. union
  9. union axiom
  10. union bug
  11. union bugs

Source and license

Adapted from Wiktionary: unioid (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “unioid.” Word.ws, https://word.ws/unioid. Based on Wiktionary, CC BY-SA 4.0.