visceral clefts — the jaw, hyoid and gill arches … Dictionary of ichthyology
Visceral — Vis cer*al, a. [Cf. F. visc[ e]ral, LL. visceralis.] 1. (Anat.) Of, pertaining to, or affecting the viscera; splanchnic. [1913 Webster] 2. Fig.: Having deep sensibility. [R.] Bp. Reynolds. [1913 Webster] 3. proceeding from emotion or instinct… … The Collaborative International Dictionary of English
Visceral arches — Visceral Vis cer*al, a. [Cf. F. visc[ e]ral, LL. visceralis.] 1. (Anat.) Of, pertaining to, or affecting the viscera; splanchnic. [1913 Webster] 2. Fig.: Having deep sensibility. [R.] Bp. Reynolds. [1913 Webster] 3. proceeding from emotion or… … The Collaborative International Dictionary of English
Visceral cavity — Visceral Vis cer*al, a. [Cf. F. visc[ e]ral, LL. visceralis.] 1. (Anat.) Of, pertaining to, or affecting the viscera; splanchnic. [1913 Webster] 2. Fig.: Having deep sensibility. [R.] Bp. Reynolds. [1913 Webster] 3. proceeding from emotion or… … The Collaborative International Dictionary of English
Visceral tube — Visceral Vis cer*al, a. [Cf. F. visc[ e]ral, LL. visceralis.] 1. (Anat.) Of, pertaining to, or affecting the viscera; splanchnic. [1913 Webster] 2. Fig.: Having deep sensibility. [R.] Bp. Reynolds. [1913 Webster] 3. proceeding from emotion or… … The Collaborative International Dictionary of English
visceral cleft — n. any of a series of paired openings leading from the pharynx to the ectoderm on each side of the neck area in a chordate embryo: in fish and some amphibians the clefts develop into gill slits, but in land vertebrates they are either lost or… … English World dictionary
visceral cleft — noun : one of the clefts that occur on each side of the neck region between successive visceral arches in vertebrates and that may or may not extend through from the exterior to the cavity of the mouth and pharynx compare branchial cleft,… … Useful english dictionary
Gill clefts — Gill Gill (g[i^]l), n. [Dan. gi[ae]lle, gelle; akin to Sw. g[ a]l, Icel. gj[ o]lnar gills; cf. AS. geagl, geahl, jaw.] 1. (Anat.) An organ for aquatic respiration; a branchia. [1913 Webster] Fishes perform respiration under water by the gills.… … The Collaborative International Dictionary of English
pharyngeal pouch — noun : any of a series of outpocketings of ectoderm on either side of the pharynx that meet the corresponding visceral furrows and give rise to the visceral clefts of the vertebrate embryo … Useful english dictionary
hemichordate — [hem΄ikôr′dāt΄] adj. [ HEMI + CHORDATE] of or pertaining to a phylum (Hemichordata) of wormlike marine animals with visceral clefts and primitive nervous and circulatory systems n. any hemichordate animal … English World dictionary
