hypostome

== English == === Etymology === From hypo- +‎ -stome. === Pronunciation === === Noun === hypostome (plural hypostomes) (anatomy) Any of certain mouth appendages of some insects, arachnids, crustaceans, and hydrozoa; in particular: The ventral mouthpart plate in trilobites; The barbed attachment structure associated with the mouthparts of parasitic arachnids (e.g. ticks); The oral tip surrounded by tentacles in hydrozoan cnidarians. 2012, Georgia E. Lesh-Laurie, Chapter 5. Expression and Maintenance of Organismic Polarity, Allison L. Burnett (editor), Biology of Hydra, Harcourt Brace Jovanovich (Academic Press), pages 160-161, As a result or these interactions, the presence of a hypostome inhibits the formation of another hypostome nearby. Removal of the hypostome causes the level of inhibition to fall; regeneration of it restores this level (Webster, 1966). ==== Synonyms ==== hypostoma ==== Derived terms ==== hypostomal hypostomial ==== Translations ==== === Anagrams === homotypes, phytosome