equivalve

equi- +‎ valve

equivalve (not comparable)

1. (zoology, of the shells of a bivalve mollusc) Having valves of the same size (as is normal)
   • 1828, John Fleming, History of British Animals:

     Shell transverse , equivalve , inequilateral , with a large oblique anteal opening

• inequivalve

equivalve (plural equivalves)

1. Any bivalve mollusc whose valves are of the same size.

From equi- +‎ valva.

• IPA^(key): /ˌɛ.kwiˈval.ve/
• Rhymes: -alve
• Hyphenation: e‧qui‧vàl‧ve

equivalve (plural equivalvi)

1. (zoology) equivalve

   Antonym: inequivalve

• equivalve in Treccani.it – Vocabolario Treccani on line, Istituto dell'Enciclopedia Italiana