Definition of invertebrates Invertebrates

/ɪnvɚˈtʌbɹʌts/ - [invertubruts] -

We found 3 definitions of invertebrates from 2 different sources.

What does invertebrates mean?

Wiktionary

invertebrates (Noun)
Plural of invertebrate.

Part of speech

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invertebrates, noun, plural of invertebrate.

WordNet

Noun Plural: invertebrates
invertebrate - any animal lacking a backbone or notochord; the term is not used as a scientific classification
		animal, animate being, beast, brute, fauna, creature a living organism characterized by voluntary movement
		arthropod invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin
		zoophyte any of various invertebrate animals resembling a plant such as a sea anemone or coral or sponge
		parazoan, poriferan, sponge primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies
		cnidarian, coelenterate radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms
		comb jelly, ctenophore biradially symmetrical hermaphroditic solitary marine animals resembling jellyfishes having for locomotion eight rows of cilia arranged like teeth in a comb
		worm any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes; also many insect larvae
		woodborer, borer any of various insects or larvae or mollusks that bore into wood
		rotifer minute aquatic multicellular organisms having a ciliated wheel-like organ for feeding and locomotion; constituents of freshwater plankton
		mollusc, mollusk, shellfish invertebrate having a soft unsegmented body usually enclosed in a shell
		phoronid hermaphrodite wormlike animal living in mud of the sea bottom
		bryozoan, moss animal, polyzoan, sea mat, sea moss sessile aquatic animal forming mossy colonies of small polyps each having a curved or circular ridge bearing tentacles; attach to stones or seaweed and reproduce by budding
		ectoproct sessile mossy aquatic animal having the anus of the polyp outside the crown of tentacles
		entoproct any of various moss-like aquatic animals usually forming branching colonies; each polyp having a both mouth and anus within a closed ring of tentacles
		symbion pandora only known species of Cycliophora; lives symbiotically attached to a lobster's lip by an adhesive disk and feeding by means of a hairy mouth ring; its complex life cycle includes asexual and sexual phases
		brachiopod, lamp shell, lampshell marine animal with bivalve shell having a pair of arms bearing tentacles for capturing food; found worldwide
		peanut worm, sipunculid small unsegmented marine worm that when disturbed retracts its anterior portion into the body giving the appearance of a peanut
		echinoderm marine invertebrates with tube feet and five-part radially symmetrical bodies
		invertebrate foot, foot travel by walking; "he followed on foot"; "the swiftest of foot"
		peristome region around the mouth in various invertebrates
Adjective
invertebrate - lacking a backbone or spinal column; "worms are an example of invertebrate animals"
		spineless
		zoological science, zoology the branch of biology that studies animals

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Wiktionary

invertebrate (Noun)
An animal without vertebrae, i. e. backbone.
invertebrate (Adjective)
Lacking a backbone.

Webster DictionaryWebster's Unabridged Dictionary 📘

invertebrate (a.)
Destitute of a backbone; having no vertebrae; of or pertaining to the Invertebrata.
invertebrate (n.)
One of the Invertebrata.

OmegaWiki DictionaryOmegaWiki Dictionary Ω

invertebrate
Any animal lacking a backbone, including all species not classified as vertebrates.
invertebrate
Lacking a backbone.

Wikipedia

Invertebrate is a kind of animal that does not have a spinal column or "backbone". It is the opposite of vertebrate, that means if an animal is not a vertebrate (fish, reptile, amphibian, bird, or mammal), it is an invertebrate.

Insects have no bones, but they have a skeleton on the outside of their bodies that scientists call an exoskeleton. It is like our skin, only it is hard.

Sharks and related skates and rays are vertebrates with cartilage instead of bones.