n. 突进者, 突进物

Darter \Dart"er\, n.
1. One who darts, or who throw darts; that which darts.

2. (Zo["o]l.) The snakebird, a water bird of the genus
{Plotus}; -- so called because it darts out its long,
snakelike neck at its prey. See {Snakebird}.

3. (Zo["o]l.) A small fresh-water etheostomoid fish. The
group includes numerous genera and species, all of them
American. See {Etheostomoid}.

Snakebird \Snake"bird`\, n. [So named from its snakelike neck.]
(Zo["o]l.)
1. Any one of four species of aquatic birds of the genus
{Anhinga} or {Plotus}. They are allied to the gannets and
cormorants, but have very long, slender, flexible necks,
and sharp bills.

Note: The American species ({Anhinga anhinga} syn. {Plotus
anhinga}) inhabits the Southern United States and
tropical America; -- called also {darter}, and {water
turkey}. The Asiatic species ({Anhinga melanogaster})
is native of Southern Asia and the East Indies. Two
other species inhabit Africa and Australia
respectively.

2. (Zo["o]l.) The wryneck.


Etheostomoid \E`the*os"to*moid\, a. [NL. etheostoma name of a
genus + -oid.] (Zo["o]l.)
Pertaining to, or like, the genus {Etheostoma}. -- n. Any
fish of the genus {Etheostoma} and related genera, allied to
the perches; -- also called {darter}. The etheostomoids are
small and often bright-colored fishes inhabiting the fresh
waters of North America. About seventy species are known,
including the rare {snail darter} ({Percina tanasi}), 3
inches long, found only in the Tennessee River and classified
as a {threatened species}. See {Darter}.