nHemimetabolasubclass of insects characterized by gradual and usually incomplete metamorphosis
Webster's Revised Unabridged Dictionary
n. plHemimetabola(Zoöl) Those insects which have an incomplete metamorphosis.
Century Dictionary and Cyclopedia
hemimetabolaInsects which undergo incomplete or partial metamorphosis; a subclass or superorder of hexapod insects, including a series intermediate between Ametabola on the one hand and Metabola on the other. The group is sometimes used as conterminous with Hemiptera in a broad sense, and is then divided into Hemiptera. Heteroptera, and Thysanoptera; or it is extended to cover the three usual orders Hemiptera, Orthoptera, and Pseudoneuroptera. Also called Homomorpha.