The tail shortens and finally disappears in the frogs and toads; with the salamanders the tail-fin only is lost.
She is said to have a hand as large as the tail-fin of a whale, and if she strikes you with it there is an end of you.
tail-fin thrice depth of tail-musculature, which extends beyond posterior end of tail-fin giving sword-tail appearance (Fig. 2).
The tail-fin, which is deepest at mid-length, extends to the back of the head and is flecked with brown.
In small larvae the outer edge of the tail-fin is dark brown.
It may, perhaps, be inquired whether there is any evidence for the existence of a tail-fin, such as is shown in our illustration.
The direction of this flattening is from side to side, and therefore the tail-fin must have been vertical, like that of a fish.
The reader will see from the figure that the tail-fin is very large, and the backbone appears to run into the lower lobe.
In the region of the tail-fin the hmal arches supporting the caudal fin-rays are very much enlarged.
We shall call this part the dorsal lobe of the tail-fin, and the secondarily formed lobe the ventral lobe.
Old English finn, from Proto-Germanic *finno (cf. Middle Low German vinne, Dutch vin), perhaps from Latin pinna "feather, wing" (see pin (n.)); or, less likely, from Latin spina "thorn, spine" (see spike (n.1)).
U.S. underworld slang sense of "$5 bill" is 1925, from Yiddish finif "five," from German fünf (see five) and thus unrelated. The same word had been used in England 1868 to mean "five pound note" (earlier finnip, 1839).
A five-dollar bill; five dollars: I gave my pal a fin/ It was the fin seen round the world. Where Reagan got the five bucks is a mystery
[1920s+ Underworld; fr Yiddish finif, ''five'']