instar

noun

1. an insect in any one of its periods of postembryonic growth between molts.

verb (used with object), in·starred, in·star·ring.

1. to set with or as if with stars.
2. Archaic.
   1. to place as a star.
   2. to make a star of.

noun

1. the stage in the development of an insect between any two moults

n.

1. Any of the successive nymphal stages in the metamorphosis of insects or the stages of larval change by successive molts.