noun
crustacean
kruhs-TAY-shuhn
Crustacean (noun) means a hard-shelled creature such as a crab, lobster, shrimp, or barnacle, mostly living in water. Example: “Lobsters and crabs are both crustaceans.”
noun
1
A hard-shelled creature such as a crab, lobster, shrimp, or barnacle, mostly living in water.
"Lobsters and crabs are both crustaceans."
How to use crustacean
Learner’s notesIn plain EnglishA group of shelled sea creatures that includes crabs, lobsters, shrimp, and barnacles.
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Word forms
- Plural
- crustaceans
- Comparative
- more crustacean
- Superlative
- most crustacean
Fill the gap
Can you complete this real example?
Lobsters and crabs are both _____.
Etymology
From the scientific name Crustacea, based on Latin crusta ("shell" or "crust") — named for their hard outer shell.
Rhymes for crustacean
See all rhymes for crustacean →Frequently asked questions
What does “crustacean” mean?
The word “crustacean” means a hard-shelled creature such as a crab, lobster, shrimp, or barnacle, mostly living in water. In plain terms, a group of shelled sea creatures that includes crabs, lobsters, shrimp, and barnacles.
How do you pronounce “crustacean”?
“Crustacean” is pronounced kruhs-TAY-shuhn (/kɹʌsˈteɪʃən/ in IPA).
How do you use “crustacean” in a sentence?
Here is “crustacean” used in a sentence: “Lobsters and crabs are both crustaceans.”
What part of speech is “crustacean”?
“Crustacean” is a noun.
Where does the word “crustacean” come from?
The word “crustacean” comes from Latin. From the scientific name Crustacea, based on Latin crusta ("shell" or "crust") — named for their hard outer shell.
