Dictionary.com
Thesaurus.com

marine biology

American  
[muh-reen-bahy-ahl-uh-jee] / məˈrin baɪˌɑl ə dʒi /

noun

  1. the branch of biology dealing with organisms that live in the ocean.


marine biology Scientific  
  1. The scientific study of organisms living in or dependent on the oceans.


Other Word Forms

Derived Forms

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.

The ship pairs advanced scientific research with high-end media content to make marine biology and conservation accessible.

From Barron's • Jan. 26, 2026

He said the investigation stems from a miscommunication with a fellow-beach goer that took place while he and his teenage daughter, who is interested in marine biology, were looking at a dead seal.

From Los Angeles Times • Oct. 2, 2025

Sage Ono, inspired by his grandfather's marine biology stories, captures the unique underwater life of Monterey Bay's giant kelp forests.

From BBC • Oct. 8, 2024

Mr. Ellis had no formal training in marine biology, conservation, painting or writing.

From New York Times • May 29, 2024

I see you need a course in marine biology.

From To Choke an Ocean by Bone, Jesse F. (Jesse Franklin)

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "marine biology" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com