出典:Wiktionary
出典:『Wiktionary』 (2025/05/29 04:15 UTC 版)
instar (third-person singular simple present instars, present participle instarring, simple past and past participle instarred)
Of obscure origin. Perhaps from a metaphor meaning 'to stand close to', thereby semantically related to Ancient Greek ἔχθαρ (ékhthar).
This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.
īnstar n sg (indeclinable, no genitive)
Indeclinable noun (used only in the nominative and accusative), singular only.
| singular | |
|---|---|
| nominative | īnstar |
| genitive | — |
| dative | — |
| accusative | īnstar |
| ablative | — |
| vocative | — |
出典:Wikipedia
出典:『Wikipedia』 (2011/07/15 16:22 UTC 版)
An instar is a developmental stage of arthropods, such as insects, between each molt (ecdysis), until sexual maturity is reached. Arthropods must shed the exoskeleton in order to grow or assume a new form. Differences between instars can often be seen in altered body proportions, colors, patterns, or changes in the number of body segments. Some arthropods can continue to molt after sexual maturity, but these subsequent molts are generally not called instars.
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