plastron

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English[edit]

Wikipedia has an article on:

Wikipedia

The plastron (underside) of a Cann's snake-neck turtle (Chelodina canni)
A fencing plastron

Etymology[edit]

From French plastron, from Italian piastrone, augmentive of piastra ‎(breastplate), from Latin emplastrum ‎(plaster), from Ancient Greek εμπλαστρον ‎(emplastron), from εμπλαστος ‎(emplastos, daubed, plastered), from εμπλασσειν ‎(emplassein, to mould, form).

Pronunciation[edit]

Noun[edit]

plastron ‎(plural plastrons)

  1. The nearly flat part of the shell structure of a tortoise or other animal, similar in composition to the carapace.
  2. (fencing) A half-jacket worn under the jacket for padding or for safety.
  3. An ornamental front panel on a woman's bodice.
    • 1942, Rebecca West, Black Lamb and Grey Falcon, Canongate 2006, p. 784,
      I bought here a wedding dress perhaps twenty or thirty years old [...] a sequin plastron to be worn over the womb as a feminine equivalent to a cod-piece, and a gauze veil embroidered in purple and gold.
  4. A film of air trapped by specialized hairs against the body of an aquatic insect, and which acts as an external gill.
    The plastron of a diving beetle is not directly a source of oxygen, but acts as a gill, acquiring oxygen from the surrounding water.
    • 2013, Jill Lancaster, Barbara J. Downes, Aquatic Entomology, page 45,
      Total independence of atmospheric air is possible only if insects have a permanent gas store or incompressible gas gill, called a plastron. Unlike compressible gas stores, the volume of a plastron remains constant and it is incompressible.
    • 2013, Jon F. Harrison, Lutz T. Wasserthal (revisions & updates), 17: Gaseous Exchange, R. F. Chapman, Stephen J. Simpson (editor), Angela E. Douglas (editor), The Insects: Structure and Function, 5th Edition, page 535,
      The plastrons of other insects are generally less efficient than that of Aphelocheirus as they have a less dense hair pile from which the air is more readily displaced.

Translations[edit]

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Esperanto[edit]

Noun[edit]

plastron

  1. accusative of plastro

French[edit]

French Wikipedia has an article on:

Wikipedia fr

Etymology[edit]

Borrowing from Italian piastrone.

Noun[edit]

plastron m ‎(plural plastrons)

  1. breastplate (piece of armour)
  2. (fencing) plastron
  3. chest pad; chest protection; chestguard
  4. (zoology) plastron (part of a turtle's shell)
  5. shirt front; the front of a shirt
  6. plastron (ornamental front part of a bodice)
  7. (zoology) breast (front part of certain birds)

Derived terms[edit]

External links[edit]