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Instar - Meaning, Definition & English Examples

An instar is a developmental stage of an insect between molts, such as a caterpillar or nymph. It describes the growth phase before reaching adulthood.

instar

/ˈɪnˌstɑr/ /ˈɪnstɑː/

Definition:

A developmental stage between molts in insects or arthropods.

Synonyms:

stage, phase, growth period

Part of Speech:

noun

Antonyms:

adult, final form

Common Collocations:

larval instar, nymphal instar, molting instar

Derivatives:

instars, instarred (rare)

Usage Tips:

Use "instar" to describe specific growth phases in insects, often numbered (e.g., "third instar").

Common Phrases:

first instar, final instar, penultimate instar

Etymology:

From Latin "instar," meaning "form" or "likeness," originally referring to stages of growth.

Examples:

  • 1. The caterpillar entered its second instar after shedding its skin.
  • 2. Scientists study each instar to understand insect development better.
  • 3. The fifth instar is the last stage before pupation.
  • 4. Dragonflies have multiple instars before reaching adulthood.

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