What does pterostigma mean?

Definitions for pterostigma
pterostig·ma

This dictionary definitions page includes all the possible meanings, example usage and translations of the word pterostigma.

Wikipedia

  1. Pterostigma

    The pterostigma (plural: pterostigmata) is a group of specialized cells in the outer wings of insects, which are often thickened or coloured, and thus stand out from other cells. It is particularly noticeable in dragonflies, but present also in other insect groups, such as snakeflies, hymenopterans, and megalopterans.

Webster Dictionary

  1. Pterostigmanoun

    a thickened opaque spot on the wings of certain insects

  2. Etymology: [NL., fr. Gr. wing + , , a mark.]

Wikidata

  1. Pterostigma

    The pterostigma is a cell in the outer wing of insects which is often thickened or coloured and so stands out from other cells. It is particularly noticeable in dragonflies, but present also in other insect groups, such as snakeflies, hymenopterans and megalopterans. The purpose of the pterostigma, being a heavier section of the wing in comparison to nearby sections, is to assist in gliding. Without the pterostigma, self-exciting vibrations would set in on the wing after a certain critical speed, making gliding impossible. Tests show that with the pterostigma, the critical gliding speed is increased 10-25% on one species of dragonfly. Some female damselflies in the family Calopterygidae possess a feature known as a pseudopterostigma. This is located in a similar position on the wing to a true pterostigma but is crossed by veins and is only defined by its paler colour compared to surrounding areas of the wing.

Entomology

  1. Pterostigma

    a thickened, opaque spot on the costal margin of a wing, near its middle or at end of the radius: = bathmis, and see stigma.

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Numerology

  1. Chaldean Numerology

    The numerical value of pterostigma in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of pterostigma in Pythagorean Numerology is: 8


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"pterostigma." Definitions.net. STANDS4 LLC, 2024. Web. 12 Jul 2024. <https://www.definitions.net/definition/pterostigma>.

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