dorsum

noun
dor·​sum | \ ˈdȯr-səm How to pronounce dorsum (audio) \
plural dorsa\ ˈdȯr-​sə How to pronounce dorsum (audio) \

Definition of dorsum

1 : the upper surface of an appendage or part
2 : back especially : the entire dorsal surface of an animal

Examples of dorsum in a Sentence

Recent Examples on the Web To make his mate more receptive in between bouts, a male N. pilipes will spread silk over her dorsum, or back, in massage-like motions known as mate binding. National Geographic, 14 Feb. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dorsum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of dorsum

1615, in the meaning defined at sense 1

History and Etymology for dorsum

Latin

Buying Guide

Our team at The Usage has selected the best massage guns of 2021.

Learn More About dorsum

Dictionary Entries Near dorsum

dorstenia

dorsum

dorsumbonal

See More Nearby Entries 

Statistics for dorsum

Cite this Entry

“Dorsum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dorsum. Accessed 27 Nov. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for dorsum

dorsum

noun
dor·​sum | \ ˈdȯr-səm How to pronounce dorsum (audio) \
plural dorsa\ -​sə How to pronounce dorsum (audio) \

Medical Definition of dorsum

1 : the upper surface of an appendage or part
2 : back sense 1a especially : the entire dorsal surface of an animal

More from Merriam-Webster on dorsum

Britannica.com: Encyclopedia article about dorsum

WORD OF THE DAY

Test Your Vocabulary

Name that Thing: Flower Edition

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!