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Webster 1913 Edition


Swallowtail

Swal′low-tailˊ

,
Noun.
1.
(Carp.)
A kind of tenon or tongue used in making joints. See
Dovetail
.
2.
(Bot.)
A species of willow.
3.
(Fort.)
An outwork with converging sides, its head or front forming a reentrant angle; – so called from its form. Called also
priestcap
.
4.
A swallow-tailed coat.
This Stultz coat, a blue
swallowtail
, with yellow buttons.
Thackeray.
5.
An arrow.
Sir W. Scott.
6.
(Zool.)
Any one of numerous species of large and handsome butterflies, belonging to Papilio and allied genera, in which the posterior border of each hind wing is prolongated in the form of a long lobe.
☞ The black swallowtail, or asterias (see
Papilio
), the blue swallowtail, or philenor, the tiger swallowtail, or turnus (see
Turnus
), and the zebra swallowtail, or ajax (see under
Zebra
) are common American species. See also
Troilus
.

Definition 2024


swallowtail

swallowtail

English

a swallow with a characteristic forked tail.
An eastern tiger swallowtail butterfly

Noun

swallowtail (plural swallowtails)

  1. The forked tail of a swallow.
  2. Anything, such as a burgee, of a similar forked shape.
  3. A type of tailcoat with two long tapering tails.Wp
    • 1906, Stanley J[ohn] Weyman, chapter I, in Chippinge Borough, New York, N.Y.: McClure, Phillips & Co., OCLC 580270828:
      It was April 22, 1831, and a young man was walking down Whitehall in the direction of Parliament Street. He wore shepherd's plaid trousers and the swallow-tail coat of the day, with a figured muslin cravat wound about his wide-spread collar.
  4. Any of various butterflies of the family Papilionidae, having a forked extension to the hind wing.

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