Dorsal vessel
Dorsal Dor"sal, a. [F. dorsal, LL. dorsalis, fr. L. dorsualis, fr. dorsum back; cf. Gr. ?, ?, mountain ridge. Cf. {Dorse}, {Dorsel}, {Dosel}.] 1. (Anat.) Pertaining to, or situated near, the back, or dorsum, of an animal or of one of its parts; notal; tergal; neural; as, the dorsal fin of a fish; the dorsal artery of the tongue; -- opposed to {ventral}. [1913 Webster]

2. (Bot.) (a) Pertaining to the surface naturally inferior, as of a leaf. (b) Pertaining to the surface naturally superior, as of a creeping hepatic moss. [1913 Webster]

{Dorsal vessel} (Zo["o]l.), a central pulsating blood vessel along the back of insects, acting as a heart. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • dorsal vessel — 1. The dorsal blood vessel. 2. (SIPUNCULA) see contractile vessel …   Dictionary of invertebrate zoology

  • dorsal vessel — noun : the elongated dorsally situated heart of insects and other arthropods …   Useful english dictionary

  • Dorsal — Dor sal, a. [F. dorsal, LL. dorsalis, fr. L. dorsualis, fr. dorsum back; cf. Gr. ?, ?, mountain ridge. Cf. {Dorse}, {Dorsel}, {Dosel}.] 1. (Anat.) Pertaining to, or situated near, the back, or dorsum, of an animal or of one of its parts; notal;… …   The Collaborative International Dictionary of English

  • Dorsal scapular artery — Artery: Dorsal scapular artery The scapular and circumflex arteries …   Wikipedia

  • Dorsal carpal branch of the radial artery — Artery: Dorsal carpal branch of the radial artery Arteries of the back of the forearm and hand. Latin ramus carpalis dorsalis arteriae radialis Gray s …   Wikipedia

  • dorsal blood vessel — 1. (ARTHROPODA: Insecta) The posterior heart and anterior aorta. 2. (ECHIURA) A dorsal tubular blood vessel in the anterior part of the body cavity often associated with the foregut; functioning in the transport of blood anteriorly to the median… …   Dictionary of invertebrate zoology

  • dorsal lamina — noun : longitudinal membrane in tunicates that projects into the cavity of the branchial sac and is borne by the large median dorsal blood vessel; also : the vessel itself …   Useful english dictionary

  • dorsal artery — (Order Decapoda): Major unpaired blood vessel arising from posterior end of heart. Extends to posterior end of abdomen and gives rise to series of segmental arteries in abdominal somites (pleomeres). (Syn. dorsal abdominal artery, posterior aorta …   Crustacea glossary

  • dorsal scapular vein — noun vein that is a tributary of the subclavian vein or external jugular vein and accompanies the descending scapular artery • Syn: ↑vena scapularis dorsalis • Hypernyms: ↑vein, ↑vena, ↑venous blood vessel …   Useful english dictionary

  • vertical blood vessel — last vertical blood vessel (the most posterior blood vessel extending from the dorsal aorta to the nephros and used as a reference point in anguilliform larval descriptions) …   Dictionary of ichthyology

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