Found 2 items, similar to instar.
English → English (WordNet) Definition: instar instar n : an insect or other arthropod between molts
English → English (gcide) Definition: Instar Instar \In"star`\, n. a postembryonic stage of life of an arthropod, especially an insect, between two successive molts; also, the arthropod when in that stage of life. [PJC] Instar \In*star"\, v. t. To stud as with stars. [R.] “A golden throne instarred with gems.” --J. Barlow. [1913 Webster]