• WordNet 3.6
    • adj soft-finned of or relating to fish with soft fins
    • ***
Webster's Revised Unabridged Dictionary
    • a Soft-finned (Zoöl) Having the fin rays cartilaginous or flexible; without spines; -- said of certain fishes.
    • ***
Century Dictionary and Cyclopedia
    • soft-finned In ichthyology, having no fin-spines; spineless; anacanthine; malacop-terous; malacopterygian. See Malacopterygii.
    • ***
Chambers's Twentieth Century Dictionary
    • Soft-finned having no fin-spines
    • ***


Chambers's Twentieth Century Dictionary
A.S. sófte, séfte; Dut. zacht, Ger. sanft.


In literature:

Now just paddle softly in the wake of that big fin.
"Dick in the Everglades" by A. W. Dimock
As the shocks passed, that fin-foot sank into the soft soil.
"Operation: Outer Space" by William Fitzgerald Jenkins
And, say, what fin'lly glides out on the stage and bows offhand to the soft patter of kid gloves is only an average looker.
"Torchy, Private Sec." by Sewell Ford
They caught sight of the master's silver and vermilion sides, his softly waving, gay-coloured fins.
"The Watchers of the Trails" by Charles G. D. Roberts
It is often advisable to lay thin card-board or strong paper under the fins, if the clay is so soft as to come up over the edges.
"Practical Taxidermy" by Montagu Browne
The soft fat fin is in its proper place.
"Lachesis Lapponica" by Carl von Linné
The black bass is a short, deep fish with a double dorsal fin; the front half being stiff and spiney and the latter half soft and rayed.
"Game Birds and Game Fishes of the Pacific Coast" by Harry Thom Payne
The Southern form has one or two less soft rays in the dorsal and anal fins.
"Bass, Pike, Perch, and Others" by James Alexander Henshall
All this time the fish has been kept wet so that the fins are soft and elastic, and the scales are perfectly smooth.
"Taxidermy and Zoological Collecting" by William T. Hornaday
Soft rays make up the greatest part of most fins.
"Elementary Zoology, Second Edition" by Vernon L. Kellogg

In news:

( Visible external features include being soft bodied and featuring tentacles, flat fins around the body, and large eyes.