a mouthpart of crustaceans and some other invertebrates, as well as ticks and mites
hypostome in American English
(ˈhaipəˌstoum)
noun
Zoology
any of several parts or organs of the mouth, as the labrum of a crustacean
Derived forms
hypostomial
adjective
Word origin
[1860–65; hypo- + -stome]This word is first recorded in the period 1860–65. Other words that entered Englishat around the same time include: big brother, blind spot, institutionalism, jumping jack, mutualismhypo- is a prefix appearing in loanwords from Greek, where it meant “under” (hypostasis). On this model, hypo- isused, especially as opposed to hyper-, in the formation of compound words (hypothyroid). Other words that use the affix hypo- include: hypogynous, hypopituitarism, hypostasis, hypothetical, hypotonic; -stome is a combining form meaning “organism having a mouth or mouthlike organ” (cyclostome), “mouthlike organ” (cytostome), as specified by the initial element. Other words that use the affix -stome include: cyclostome, cytostome, deuterostome, monostome, nephrostome
Examples of 'hypostome' in a sentence
hypostome
A small lesion was located immediately under the hypostome and likely represents the feeding pool.
Dar M Heinze, Russ eCarmical, Judith eAronson, Franscisco eAlarcon-Chaidez, StepheneWikel, Saravanan eThangamani 2014, 'Murine cutaneous responses to the Rocky Mountain spotted fever vector, Dermacentorandersoni, feeding.', Frontiers in Microbiologyhttp://journal.frontiersin.org/Journal/10.3389/fmicb.2014.00198/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Ventrally this unit surrounds a large medial sclerite, interpreted as the anterior part of the hypostome.
Haug Carolin, Sallam Wafaa S, Maas Andreas, Waloszek Dieter, Kutschera Verena, HaugJoachim T 2012, 'Tagmatization in Stomatopoda – reconsidering functional units of modern-day mantisshrimps (Verunipeltata, Hoplocarida) and implications for the interpretation of fossils',Frontiers in Zoologyhttp://www.frontiersinzoology.com/content/9/1/31. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)