/fuy sos"teuh meuhs/, adj. Ichthyol.
having the mouth and air bladder connected by an air duct. Cf. physoclistous.
[1885-90; PHYSO- + -STOMOUS]

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Universalium. 2010.

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  • Physostomous — Phy*sos to*mous, a. (Zo[ o]l.) (a) Having a duct to the air bladder. (b) Pertaining to the Physostomi. [1913 Webster] …   The Collaborative International Dictionary of English

  • physostomous — [fī΄sō stäm′ə təsfī säs′tə məs] adj. [< Gr physa (see PHYSOSTIGMINE) + STOMOUS] Zool. having the air bladder connected to the digestive tract by a tube, as certain fishes: also physostomatous [fī΄sō stäm′ə təs] …   English World dictionary

  • physostomous — having the gas bladder connected by a tube to the gut …   Dictionary of ichthyology

  • physostomous — phy·sos·to·mous …   English syllables

  • physostomous — /faɪˈsɒstəməs/ (say fuy sostuhmuhs) adjective Ichthyology having the mouth and air bladder connected by an air duct. {New Latin Phȳsostomī, a genus name (from Greek physa bladder + stomos mouthed) + ous} …  

  • physostomous — …   Useful english dictionary

  • pneumatic duct — noun : the duct that connects the air bladder with the alimentary canal in physostomous fishes * * * the duct joining the air bladder and alimentary canal of a physostomous fish …   Useful english dictionary

  • Plectospondyli — Plec to*spon dy*li, n. pl. [NL., fr. Gr. ? plaited + ?, ?, a vertebra.] (Zo[ o]l.) An extensive suborder of fresh water physostomous fishes having the anterior vertebr[ae] united and much modified; the Eventognathi. [1913 Webster] …   The Collaborative International Dictionary of English

  • Gas bladder — and thus to stay at the current water depth, ascend, or descend without having to waste energy in swimming. cite encyclopedia | title =Fish | encyclopedia =Microsoft Encarta Encyclopedia Deluxe 1999 | publisher =Microsoft | date =1999] The gas… …   Wikipedia

  • air bladder — gas bladder, the preferable term since the composition of gases may not be identical to that of air (a thin membranous, sometimes alveolated sac in the dorsal portion of the abdominal cavity. Composed of three layers, the tunica externa, the… …   Dictionary of ichthyology

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