[ mal-uh-kop-tuh-rij-ee-uh n ]
/ ˌmæl əˌkɒp təˈrɪdʒ i ən /


belonging or pertaining to the Malacopterygii (Malacopteri), a group of soft-finned, teleost fishes.

Origin of malacopterygian

1825–35; < New Latin Malacopterygi(i) (malaco- malaco- + -pterygii, plural of -pterygius finned, winged, adj. derivative of Greek pterýgion, diminutive of ptéryx wing, fin) + -an Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for malacopterygian

/ (ˌmæləˌkɒptəˈrɪdʒɪən) /


of, relating to, or belonging to the Malacopterygii, a group of teleost fishes, including herrings and salmon, having soft fin rays


any malacopterygian fish; a soft-finned fish

Word Origin for malacopterygian

C19: from New Latin Malacopterygii, from malaco- + Greek pterux wing, fin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012