dorsal

1 of 3

noun (1)

dor·​sal ˈdȯr-səl 

variant of dossal

: an ornamental cloth hung behind and above an altar

dorsal

2 of 3

adjective

dor·​sal ˈdȯr-səl 

1

: relating to or situated near or on the back especially of an animal or of one of its parts

2

: abaxial

dorsally

ˈdȯr-sə-lē 

adverb

dorsal

3 of 3

noun (2)

: a dorsally located part

especially : a thoracic vertebra

Did you know?

The most famous use of dorsal is with fin, whether it conjures the ominous dorsal fin of sharks or the benign, even benevolent, image of porpoises and dolphins. Less well-known is the botanical sense of dorsal, meaning "facing away from the axis or stem" (thus the underside of a leaf can be the dorsal side), or the linguistic sense referring to articulations made with the back part of the tongue (\k\ and \g\, for example). Dorsal can be used of non-living things too (in particular, the backs of airplanes), as can its opposite, ventral, which means "relating to the belly." Dorsal descends from Latin dorsum ("back"), which also gave us dossier (via French, for a bundle of documents labeled on the back) and reredos ("an ornamental screen or partition wall behind an altar").

Examples of dorsal in a Sentence

Recent Examples on the Web

Noun

The dorsal section plays a role in distinguishing self from other and appears to be task-related, whereas the ventral section, the vmPFC, contributes more to emotional processing. —Robert Martone, Scientific American, 21 Dec. 2021

For one, there was the enigma of what scientists had believed was the dorsal organ’s position. —Mindy Weisberger, CNN, 24 June 2024

Adjective

By attacking them from below, the orcas avoid the whale sharks' tough dorsal skin that has denticles embedded on the outside, with thick connective tissue beneath it. —New Atlas, 29 Nov. 2024

Because of this dorsal/ventral bias in body bends, any normal living, moving individual tends to lie on either its left side or its right side when observed crossing a horizontal surface. —John Werner, Forbes, 20 Sep. 2024

Word History

Etymology

Adjective

Late Latin dorsalis, from Latin dorsum back

First Known Use

Adjective

1727, in the meaning defined at sense 1

Noun (2)

1834, in the meaning defined above

Phrases Containing dorsal

• dorsal fin
• dorsal lip
• dorsal root
• dorsal root ganglion

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Kids Definition

dorsal

adjective

dor·​sal

ˈdȯr-səl

: relating to or situated near or on the back (as of an animal)

dorsally

-sə-lē

adverb

Medical Definition

dorsal

1 of 2 adjective

dor·​sal ˈdȯr-səl 

1

a

: being or located near, on, or toward the upper surface of an animal (as a quadruped) opposite the lower or ventral surface

b

: being or located near, on, or toward the back or posterior part of the human body

2

chiefly British : thoracic

dorsally

-sə-lē 

adverb

dorsal

2 of 2 noun

: a dorsally located part

especially : a thoracic vertebra