Definition of gas
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Gas (n.) An aeriform fluid; -- a term used at first by chemists as synonymous with air, but since restricted to fluids supposed to be permanently elastic, as oxygen, hydrogen, etc., in distinction from vapors, as steam, which become liquid on a reduction of temperature. In present usage, since all of the supposed permanent gases have been liquified by cold and pressure, the term has resumed nearly its original signification, and is applied to any substance in the elastic or aeriform state..
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Stromeyerite ::
Strombus (n.) A genus of marine gastropods in which the shell has the outer lip dilated into a broad wing. It includes many large and handsome species commonly called conch shells, or conchs. See Conch..
Gastro- ::
Gastro- () A combining form from the Gr. /, /, the stomach, or belly; as in gastrocolic, gastrocele, gastrotomy..
Inflate ::
Inflate (v. t.) To swell or distend with air or gas; to dilate; to expand; to enlarge; as, to inflate a bladder; to inflate the lungs..
Prosobranchiata ::
Prosobranchiata (n. pl.) The highest division, or subclass, of gastropod mollusks, including those that have the gills situated anteriorly, or forward of the heart, and the sexes separate..
Megaseme ::
Megaseme (a.) Having the orbital index relatively large; having the orbits narrow transversely; -- opposed to microseme.
Jewfish ::
"Jewfish (n.) A similar gigantic fish (Stereolepis gigas) of Southern California, valued as a food fish..
Oxygen ::
Oxygen (n.) A colorless, tasteless, odorless, gaseous element occurring in the free state in the atmosphere, of which it forms about 23 per cent by weight and about 21 per cent by volume, being slightly heavier than nitrogen. Symbol O. Atomic weight 15.96..
Tendrac ::
Tendrac (n.) Any one of several species of small insectivores of the family Centetidae, belonging to Ericulus, Echinope, and related genera, native of Madagascar. They are more or less spinose and resemble the hedgehog in habits. The rice tendrac (Oryzorictes hora) is very injurious to rice crops. Some of the species are called also tenrec..
Metagastric ::
Metagastric (a.) Of or pertaining to the two posterior gastric lobes of the carapace of crabs.
Ozone ::
Ozone (n.) A colorless gaseous substance (O/) obtained (as by the silent discharge of electricity in oxygen) as an allotropic form of oxygen, containing three atoms in the molecule. It is a streng oxidizer, and probably exists in the air, though by he ordinary tests it is liable to be confused with certain other substances, as hydrogen dioxide, or certain oxides of nitrogen. It derives its name from its peculiar odor, which resembles that of weak chlorine..
Hydrobranchiata ::
Hydrobranchiata (n. pl.) An extensive artificial division of gastropod mollusks, including those that breathe by gills, as contrasted with the Pulmonifera..
Igasuric ::
Igasuric (a.) Pertaining to, or obtained from, nux vomica or St. Ignatius's bean; as, igasuric acid..
Parumbilical ::
Parumbilical (a.) Near the umbilicus; -- applied especially to one or more small veins which, in man, connect the portal vein with the epigastric veins in the front wall of the abdomen..
Yet ::
Yet (n.) Any one of several species of large marine gastropods belonging to the genus Yetus, or Cymba; a boat shell..
Water ::
Water (n.) A solution in water of a gaseous or readily volatile substance; as, ammonia water..
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