Definition of crustaceans Crustaceans
/kɹʌstejˈʃʌnz/ - [krusteyshunz] -
We found 3 definitions of crustaceans from 2 different sources.
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What does crustaceans mean?
Wiktionary 
- crustaceans (Noun)
Plural of crustacean.
Part of speech
🔤- crustaceans, noun, plural of crustacean.
WordNet
NounPlural: crustaceans |
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| crustacean - any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton | ||
| arthropod invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin | ||
| class crustacea, crustacea class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas | ||
| green gland one of a pair of glands (believed to have excretory functions) in some crustaceans near the base of the large antennae | ||
| malacostracan crustacean a major subclass of crustaceans | ||
| decapod crustacean, decapod crustaceans characteristically having five pairs of locomotor appendages each joined to a segment of the thorax | ||
| brachyuran typical crabs | ||
| stomatopod, stomatopod crustacean a kind of crustacean | ||
| branchiopod, branchiopod crustacean, branchiopodan aquatic crustaceans typically having a carapace and many pairs of leaflike appendages used for swimming as well as respiration and feeding | ||
| copepod, copepod crustacean minute marine or freshwater crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish | ||
| mussel shrimp, ostracod, seed shrimp tiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell | ||
| cirriped, cirripede, barnacle marine crustaceans with feathery food-catching appendages; free-swimming as larvae; as adults form a hard shell and live attached to submerged surfaces | ||
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Wiktionary
Webster DictionaryWebster's Unabridged Dictionary 📘
- crustacean (a.)
Of or pertaining to the Crustacea; crustaceous. - crustacean (n.)
An animal belonging to the class Crustacea.
OmegaWiki DictionaryOmegaWiki Dictionary Ω
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crustacean
A subphylum of arthropod animals having jointed feet and mandibles, two pairs of antennae, and segmented, chitin-encased bodies.
Wikipedia 
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The crustaceans are a large group of arthropods. Lobsters, crabs, shrimp, and barnacles are familiar crustaceans. Most crustaceans live in the water, either fresh water or salt water. Some have moved on land permanently though. Crustaceans that permanently live on land include some crabs, terrestrial hermit crabs, and woodlice.
Most crustaceans are motile. This means they can move by themselves. Some become sessile, like barnacles, which become attached to a support. Some are parasitic, like sea lice, fish lice, whale lice, and tongue worms.
Crustaceans have three major body parts. They are, front to back: head, thorax, and abdomen. Generally, they have two pairs of antennae, two eyes, and three pairs of jaws on their head. Most breathe with gills, although certain land crabs have developed lungs.
Of all the animals, crustaceans are the closest relatives of insects.
Lobsters and crabs have hard outer skeletons, and tend to preserve well as fossils. However, some crustaceans, such as barnacles, have thin shells, and their fossils are quite rare.
The shells of most crabs are quite strong but can be broken with human hands or the jaw of any animal.
Part of speech
🔤- crustacean, noun, singular of crustaceans.
