D defs.my
Entry 2 senses Webster, 1913

Tadpole

/tăd'-pōlˌ/ · Tad·pole · IPA /ˈtædpoʊl/
01 n. The young aquatic larva of any amphibian. In this stage it breathes by means of external or internal gills, is at first destitute of legs, …
  1. 1.
    The young aquatic larva of any amphibian. In this stage it breathes by means of external or internal gills, is at first destitute of legs, and has a finlike tail. Called also polliwig, polliwog, porwiggle, or purwiggy.(Zool.) Also: polliwig, polliwog, porwiggle, purwiggy
  2. 2.
    The hooded merganser.(Zool.) [Local, U. S.]
Phrases & compounds
Tadpole fish — See Forkbeard (a).