Ventral fins

Ventral fins
Ventral Ven"tral, a. [L. ventralis, fr. venter the belly; perhaps akin to G. wanst: cf. F. ventral.] 1. (Anat.) Of, pertaining to, or situated near, the belly, or ventral side, of an animal or of one of its parts; hemal; abdominal; as, the ventral fin of a fish; the ventral root of a spinal nerve; -- opposed to {dorsal}. [1913 Webster]

2. (Bot.) (a) Of or pertaining to that surface of a carpel, petal, etc., which faces toward the center of a flower. (b) Of or pertaining to the lower side or surface of a creeping moss or other low flowerless plant. Opposed to {dorsal}. [1913 Webster]

{Ventral fins} (Zo["o]l.), the posterior pair of fins of a fish. They are often situated beneath the belly, but sometimes beneath the throat.

{Ventral segment}. (Acoustics) See {Loop}, n., 5. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • ventral fins — the paired fins other than the pectoral fins (placed right behind the gill slit); may be located behind, below or in front of the pectoral fins. Sometimes lacking. Also called pelvic fins …   Dictionary of ichthyology

  • Ventral — Ven tral, a. [L. ventralis, fr. venter the belly; perhaps akin to G. wanst: cf. F. ventral.] 1. (Anat.) Of, pertaining to, or situated near, the belly, or ventral side, of an animal or of one of its parts; hemal; abdominal; as, the ventral fin of …   The Collaborative International Dictionary of English

  • Ventral segment — Ventral Ven tral, a. [L. ventralis, fr. venter the belly; perhaps akin to G. wanst: cf. F. ventral.] 1. (Anat.) Of, pertaining to, or situated near, the belly, or ventral side, of an animal or of one of its parts; hemal; abdominal; as, the… …   The Collaborative International Dictionary of English

  • ventral photophores — a row of light organs along the abdomen on either side of the midventral line between the ventral and anal fins in Myctophidae. Abbreviated VO …   Dictionary of ichthyology

  • ventral — adj. 1 Anat. & Zool. of or on the abdomen (cf. DORSAL). 2 Bot. of the front or lower surface. Phrases and idioms: ventral fin either of the ventrally placed fins on a fish. Derivatives: ventrally adv. Etymology: obs. venter abdomen f. L venter… …   Useful english dictionary

  • ventral fin — noun Fins located ventrally below the pectoral fins of a fish. Syn: pelvic fin …   Wiktionary

  • ventral disk — sucker formed by the pelvic fins …   Dictionary of ichthyology

  • ventral fin marsupium — the name applied to the brood pouch in Solenostomidae. It is a pouch formed by the pelvic fins, provided with many long filaments, and found only in the female …   Dictionary of ichthyology

  • ventral fin — /vɛntrəl ˈfɪn/ (say ventruhl fin) noun (in fishes) either of a pair of fins on the lower surface of the body, and homologous with the hind limbs of higher vertebrates …  

  • ventral fin — noun either of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movement; correspond to hind limbs of a land vertebrate • Syn: ↑pelvic fin • Hypernyms: ↑fin …   Useful english dictionary

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