Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of invertebrate is as below...

Exoskeleton :: Exoskeleton (n.) The hardened parts of the external integument of an animal, including hair, feathers, nails, horns, scales, etc.,as well as the armor of armadillos and many reptiles, and the shells or hardened integument of numerous invertebrates; external skeleton; dermoskeleton..

Vent :: Vent (n.) The anal opening of certain invertebrates and fishes; also, the external cloacal opening of reptiles, birds, amphibians, and many fishes..

Hypoderma :: Hypoderma (n.) An inner cellular layer which lies beneath the chitinous cuticle of arthropods, annelids, and some other invertebrates..

Invertebrated :: Invertebrated (a.) Having no backbone; invertebrate.

Retinula :: Retinula (n.) One of the group of pigmented cells which surround the retinophorae of invertebrates. See Illust. under Ommatidium.

Zoophyte :: Zoophyte (v. i.) Any one of numerous species of invertebrate animals which more or less resemble plants in appearance, or mode of growth, as the corals, gorgonians, sea anemones, hydroids, bryozoans, sponges, etc., especially any of those that form compound colonies having a branched or treelike form, as many corals and hydroids..

Uterus :: Uterus (n.) A receptacle, or pouch, connected with the oviducts of many invertebrates in which the eggs are retained until they hatch or until the embryos develop more or less. See Illust. of Hermaphrodite in Append..

Spicule :: Spicule (n.) Any small calcareous or siliceous body found in the tissues of various invertebrate animals, especially in sponges and in most Alcyonaria..

Gizzard :: Gizzard (n.) A thick muscular stomach found in many invertebrate animals.

Keratose :: Keratose (n.) A tough, horny animal substance entering into the composition of the skeleton of sponges, and other invertebrates; -- called also keratode..

Hermaphrodite :: Hermaphrodite (n.) An individual which has the attributes of both male and female, or which unites in itself the two sexes; an animal or plant having the parts of generation of both sexes, as when a flower contains both the stamens and pistil within the same calyx, or on the same receptacle. In some cases reproduction may take place without the union of the distinct individuals. In the animal kingdom true hermaphrodites are found only among the invertebrates. See Illust. in Appendix, under Helmi

Oar :: Oar (n) An oarlike swimming organ of various invertebrates.

Sporozoa :: Sporosac (n.) An early or simple larval stage of trematode worms and some other invertebrates, which is capable or reproducing other germs by asexual generation; a nurse; a redia..

Chitin :: Chitin (n.) A white amorphous horny substance forming the harder part of the outer integument of insects, crustacea, and various other invertebrates; entomolin..

Heterogangliate :: Heterogangliate (a.) Having the ganglia of the nervous system unsymmetrically arranged; -- said of certain invertebrate animals.

Ocellus :: Ocellus (n.) A little eye; a minute simple eye found in many invertebrates.

Water Pore :: Water pore () A pore by which the water tubes of various invertebrates open externally.

Neurula :: Neurula (n.) An embryo or certain invertebrates in the stage when the primitive band is first developed.

Arm :: Arm (n.) A limb, or locomotive or prehensile organ, of an invertebrate animal..

Eye :: Eye (n.) The organ of sight or vision. In man, and the vertebrates generally, it is properly the movable ball or globe in the orbit, but the term often includes the adjacent parts. In most invertebrates the years are immovable ocelli, or compound eyes made up of numerous ocelli. See Ocellus..

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