hylogamy n. [Gr. hyle, material; gamos, marriage] The fusion of gametes; syngamy.
hylophagous a. [Gr. hyle, wood; phagein, to eat] Wood eating, as some insects.
hylotomous a. [Gr. hyle, wood; temnein, to cut] Cutting wood, as some insects.
hymen n. [Gr. hymen] Membrane.
hyoid sclerite (ARTHRO: Insecta) A small sclerite near the base of the labrum in many cyclorrhaphous flies.
hyote spines (MOLL: Bivalvia) Variably shaped (founded, ear-shaped), hollow, tubular spines open at their tips and on their flanks, arising from the thin edges of the shell margin of oysters; typical of Hyotissa Hyotis (Linne, 1758).
hypandrium n.; pl. -dria [Gr. hypo, under; aner, male] (ARTHRO: Insecta) The plate below the genitalia of males, usually in abdominal sternum 8 or 9. see subgenital plate.
hyperandric a. [Gr. hyper, above; andros, male] (ANN: Oli-gochaeta) In earthworms, having additional testes other than those of segments x-xi. hyperandry n.
hyperapolysis n. [Gr. hyper, above; apo, separation; lyein, to dissolve] (platy: Cestoda) Detachment of a juvenile tapeworm proglottid before eggs are formed.
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