n. 跳虫

[ noun ]
any of numerous minute wingless primitive insects possessing a special abdominal appendage that allows the characteristic nearly perpetual springing pattern; found in soil rich in organic debris or on the surface of snow or water
<noun.animal>

Springtail \Spring"tail`\ (-t[=a]l`), n. (Zo["o]l.)
Any one of numerous species of small apterous insects
belonging to the order {Thysanura}. They have two elastic
caudal stylets which can be bent under the abdomen and then
suddenly extended like a spring, thus enabling them to leap
to a considerable distance. See {Collembola}, and {Podura}.

Pintail \Pin"tail`\, n.
1. (Zo["o]l.) A northern duck ({Dafila acuta}), native of
both continents. The adult male has a long, tapering tail.
Called also {gray duck}, {piketail}, {piket-tail},
{spike-tail}, {split-tail}, {springtail}, {sea pheasant},
and {gray widgeon}.

2. (Zo["o]l.) The sharp-tailed grouse of the great plains and
Rocky Mountains ({Pedioc[ae]tes phasianellus}); -- called
also {pintailed grouse}, {pintailed chicken},
{springtail}, and {sharptail}.


Pintail \Pin"tail`\, n.
1. (Zo["o]l.) A northern duck ({Dafila acuta}), native of
both continents. The adult male has a long, tapering tail.
Called also {gray duck}, {piketail}, {piket-tail},
{spike-tail}, {split-tail}, {springtail}, {sea pheasant},
and {gray widgeon}.

2. (Zo["o]l.) The sharp-tailed grouse of the great plains and
Rocky Mountains ({Pedioc[ae]tes phasianellus}); -- called
also {pintailed grouse}, {pintailed chicken},
{springtail}, and {sharptail}.