hypoplasia n. [Gr. hypo, under; plasis, a molding] Developmental deficiency of an organ system, organ, or tissue. hy-poplastic a.
hypoplax n. [Gr. hypo, under; plax, plate] (MOLL) A long, narrow, calcareous ventral plate covering the gape between the two valves on the ventral margin, joined to the valves by a chitinous fold.
hopopleural bristles (ARTHRO: Insecta) In Diptera, a row of bristles, usually vertical, on the hypopleuron, above the hind coxae.
hypopleurite n. [Gr. hypo, under; pleura, side] (ARTHRO: Insecta) The lower plate of a divided pleuron.
hypopleuron n. [Gr. hypo, under; pleura, side] (ARTHRO: Insecta) 1. The region below the metapleuron. 2. In Diptera, the lower part of the mesepimeron.
hypoploid a. [Gr. hypo, under; aploos, onefold; eides, form] Cells or individuals with one or more chromosomes or segments deleted. see hyperploid.
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