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...

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..

Pneumoskeleton :: Pneumoskeleton (n.) A chitinous structure which supports the gill in some invertebrates.

Vulva :: Vulva (n.) The orifice of the oviduct of an insect or other invertebrate.

Zoochlorella :: Zoochlorella (n.) One of the small green granulelike bodies found in the interior of certain stentors, hydras, and other invertebrates..

Otolite :: Otolite (n.) One of the small bones or particles of calcareous or other hard substance in the internal ear of vertebrates, and in the auditory organs of many invertebrates; an ear stone. Collectively, the otoliths are called ear sand and otoconite..

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..

Invertebrate :: Invertebrate (n.) One of the Invertebrata.

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

Scale :: Scale (n.) One of the small scalelike structures covering parts of some invertebrates, as those on the wings of Lepidoptera and on the body of Thysanura; the elytra of certain annelids. See Lepidoptera..

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

Pylorus :: Pylorus (n.) A posterior division of the stomach in some invertebrates.

Water Tube :: Water tube () One of a system of tubular excretory organs having external openings, found in many invertebrates. They are believed to be analogous in function to the kidneys of vertebrates. See Illust. under Trematodea, and Sporocyst..

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

Neural :: Neural (a.) relating to the nerves or nervous system; taining to, situated in the region of, or on the side with, the neural, or cerebro-spinal, axis; -- opposed to hemal. As applied to vertebrates, neural is the same as dorsal; as applied to invertebrates it is usually the same as ventral. Cf. Hemal..

Hair :: Hair (n.) One the above-mentioned filaments, consisting, in invertebrate animals, of a long, tubular part which is free and flexible, and a bulbous root imbedded in the skin..

Corneule :: Corneule (n.) One of the corneas of a compound eye in the invertebrates.

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

Peristome :: Peristome (n.) The membrane surrounding the mouth of an invertebrate animal.

Retineum :: Retineum (n.) That part of the eye of an invertebrate which corresponds in function with the retina of a vertebrate.

Spermatheca :: Spermatheca (n.) A small sac connected with the female reproductive organs of insects and many other invertebrates, serving to receive and retain the spermatozoa..

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