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Definitions

dorsal

[dawr-suhl] / ˈdɔr səl /
ADJECTIVE
posterior
Synonyms
STRONG
back behind hind last
WEAK
after hinder hindmost in back of retral
Antonyms
STRONG
front
WEAK
anterior preceding
ADJECTIVE
rear
Synonyms
STRONG
behind following hind hinder last mizzen posterior postern rearward reverse stern tail
WEAK
aft after astern backward hindermost hindmost rearmost retral
Antonyms
STRONG
first front preceding
WEAK
beginning
NOUN
fin
Synonyms
STRONG
appendage flipper pinna

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Each encounter was carefully recorded, and the individual orcas were identified by markings on their dorsal fins.

From Science Daily • Nov. 3, 2025

"A dorsal fin slowly broke the surface revealing that familiar profile that looked like a shark," he said.

From BBC • May 16, 2025

With its long eel-like body, gaping mouth and bright red dorsal fins, it’s no surprise that the oarfish calls to mind a sea monster.

From Slate • Nov. 22, 2024

Yet sea robins are most notable for their distinctively large, fan-shaped dorsal fins and for their six leg-like appendages.

From Salon • Sep. 27, 2024

Nereus spun and expanded, turning into a killer whale, but I grabbed his dorsal fin as he burst out of the water.

From "The Titan's Curse" by Rick Riordan