an insect in any one of its periods of postembryonic growth between molts.
Other definitions for instar (2 of 2)
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How to use instar in a sentence
Greek taken singly is, to use an indispensable Latin word, instar, the knowledge of all other languages.The Posthumous Works of Thomas De Quincey, Vol. 1 (2 vols) | Thomas De Quincey
Que Germania sic dicta erat, quia instar ramorum germinancium ab arbore, sic nomen regnaque germania nuncupantur.Beowulf | R. W. Chambers
Is vulgo putatur in tenebris Carbonis instar lucere; fortassis quia Pyropus seu Anthrax appellatus a veteribus fuit.Experiments and Considerations Touching Colours (1664) | Robert Boyle
Testa subulata instar turris, anfractuum undecim, reticulata striis elevatis decussantibus punctis contiguationem eminentibus.
Sixty-nine per cent of the warbles were in the third instar stage, and the rest were in the second instar stage.
British Dictionary definitions for instar
the stage in the development of an insect between any two moults
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