instar

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in·star

(in'stahr),
Any of the successive nymphal stages in the metamorphosis of hemimetabolous insects (simple or incomplete metamorphosis), or the stages of larval change by successive molts that characterize the holometabolous insects (complex or complete metamorphosis).
[L. form]

instar

/in·star/ (in´stahr) any stage of an arthropod between molts.

instar

(ĭn′stär′)
n.
A stage of an insect or other arthropod between one molt and the next.

in·star

(in'stahr)
Any of the successive nymphal or larval stages in the metamorphosis of insects.
[L. form]

instar

a larval stage of insect development. The first instar hatches from the egg and after the first moult (see ECDYSIS becomes the second instar. Thus a third instar larva is one which has completed two moults.

instar

a stage between molts in the development of an insect in which it undergoes a metamorphosis and changes its shape to a degree away from the first instar and towards the final one. The number of instars in an insect's metamorphosis varies widely between species from 5 up to 20 or more.