Word.ws English Dictionary

marine mammal

marine mammal noun: a mammal which lives partly or wholly in the ocean, or at least is heavily dependent on the ocean for its lifestyle; such as the cetaceans, the sirenians, the pinnipeds, the sea otter, or the polar bear.

marine mammal: a mammal which lives partly or wholly in the ocean, or at least is heavily dependent on the ocean...
Image: Robert Pitman, Public domain, via Wikimedia Commons

Noun

marine mammal (plural marine mammals)

  1. A mammal which lives partly or wholly in the ocean, or at least is heavily dependent on the ocean for its lifestyle; such as the cetaceans, the sirenians, the pinnipeds, the sea otter, or the polar bear.
    • The influence of the temperature of the Gulf-stream upon animal life in the ocean is very curious. The whale so sedulously shuns its warm waters, as almost to indicate their track by its absence ; while yet abundantly found on each side of it. The physical reasons are doubtless the same which...1857 April, Philippe de Kerhallet, “The Atlantic Ocean”, in Edinburgh Review, volume CV, number CCXIV, page 371
    Synonyms:
    sea mammal

Synonyms of marine mammal

Forms of marine mammal

pluralmarine mammals

Questions about marine mammal

What does marine mammal mean?
Marine mammal means a mammal which lives partly or wholly in the ocean, or at least is heavily dependent on the ocean for its lifestyle; such as the cetaceans, the sirenians, the pinnipeds, the sea otter, or the polar bear.
What part of speech is marine mammal?
Marine mammal is a noun.
What is the plural of marine mammal?
The plural of marine mammal is marine mammals.

Words near marine mammal in the dictionary

  1. marine interest
  2. marine league
  3. marine leagues
  4. marine leg
  5. marine legs
  6. marine mammal
  7. marine mammals
  8. marine metal
  9. marine mucilage
  10. marine mucilages
  11. marine otter

Source and license

Adapted from Wiktionary: marine mammal (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “marine mammal.” Word.ws, https://word.ws/marine_mammal. Based on Wiktionary, CC BY-SA 4.0.