Of or pertaining to the pupa stage of insect metamorphosis.(adjective)
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Use "pupal" in a sentence
"A succeeding stage of this mite, which may be called the pupal, is considerably smaller than the larva and looks somewhat like the adult, the body having become shorter and broader."
"Cirripedes passing through what I have called a pupal state (244/5."
"Then, as though slowly becoming aware of his presence, the figure moved, like an insect in its pupal shell, the arms lowering, the head beginning to turn."