Search:isomeric -> ISOMERIC
isomeric
i s o m e r i c hex:#105;#115;#111;#109;#101;#114;#105;#99;
The Salt of the World?
- Isomeric - a. - Having the same percentage composition; -- said of two or more different substances which contain the same ingredients in the same proportions by weight, often used with with. Specif.: (a) Polymeric; i. e., having the same elements united in the same proportion by weight, but with different molecular weights; as, acetylene and benzine are isomeric (polymeric) with each other in this sense. See Polymeric. (b) Metameric; i. e., having the same elements united in the same proportions by weight, and with the same molecular weight, but which a different structure or arrangement of the ultimate parts; as, ethyl alcohol and methyl ether are isomeric (metameric) with each other in this sense. See Metameric.
- Isomeric - a. - Having the same percentage composition; -- said of two or more different substances which contain the same ingredients in the same proportions by weight, often used with with. Specif.: (a) Polymeric; i. e., having the same elements united in the same proportion by weight, but with different molecular weights; as, acetylene and benzine are isomeric (polymeric) with each other in this sense. See Polymeric. (b) Metameric; i. e., having the same elements united in the same proportions by weight, and with the same molecular weight, but which a different structure or arrangement of the ultimate parts; as, ethyl alcohol and methyl ether are isomeric (metameric) with each other in this sense. See Metameric.
- Dispoline - n. - One of several isomeric organic bases of the quinoline series of alkaloids.
- Saccharin - n. - A bitter white crystalline substance obtained from the saccharinates and regarded as the lactone of saccharinic acid; -- so called because formerly supposed to be isomeric with cane sugar (saccharose).
- Melitose - n. - A variety of sugar isomeric with sucrose, extracted from cotton seeds and from the so-called Australian manna (a secretion of certain species of Eucalyptus).
- Decane - n. - A liquid hydrocarbon, C10H22, of the paraffin series, including several isomeric modifications.
- Trimethylene - n. - A gaseous hydrocarbon, C3H6, isomeric with propylene and obtained from it indirectly. It is the base of a series of compounds analogous to the aromatic hydrocarbons.
- Paraconic - a. - Pertaining to, or designating, an organic acid obtained as a deliquescent white crystalline substance, and isomeric with itaconic, citraconic, and mesaconic acids.
- Toluric - a. - Of, pertaining to, or designating, any one of three isomeric crystalline acids, C9H10ON.CO2H, which are toluyl derivatives of glycocoll.
- Isomer - n. - A body or compound which is isomeric with another body or compound; a member of an isomeric series.
- Para- - - A prefix denoting: (a) Likeness, similarity, or connection, or that the substance resembles, but is distinct from, that to the name of which it is prefixed; as paraldehyde, paraconine, etc.; also, an isomeric modification. (b) Specifically: (Organ. Chem.) That two groups or radicals substituted in the benzene nucleus are opposite, or in the respective positions 1 and 4; 2 and 5; or 3 and 6, as paraxylene; paroxybenzoic acid. Cf. Ortho-, and Meta-. Also used adjectively.
- Tetramethylene - n. - Sometimes, an isomeric radical used to designate certain compounds which are really related to butylene.
- Cellulose - n. - The substance which constitutes the essential part of the solid framework of plants, of ordinary wood, linen, paper, etc. It is also found to a slight extent in certain animals, as the tunicates. It is a carbohydrate, (C6H10O5)n, isomeric with starch, and is convertible into starches and sugars by the action of heat and acids. When pure, it is a white amorphous mass. See Starch, Granulose, Lignin.
- Sorbin - n. - An unfermentable sugar, isomeric with glucose, found in the ripe berries of the rowan tree, or sorb, and extracted as a sweet white crystalline substance; -- called also mountain-ash sugar.
- Melezitose - n. - A variety of sugar, isomeric with sucrose, extracted from the manna of the larch (Larix).
- Paraconine - n. - A base resembling and isomeric with conine, and obtained as a colorless liquid from butyric aldehyde and ammonia.
- Triticin - n. - A carbohydrate isomeric with dextrin, obtained from quitch grass (Agropyrum, formerly Triticum, repens) as a white amorphous substance.
- Synanthrose - n. - A variety of sugar, isomeric with sucrose, found in the tubers of the Jerusalem artichoke (Helianthus tuberosus), in the dahlia, and other Compositae.
- Hyoscyamine - n. - An alkaloid found in henbane (Hyoscyamus niger), and regarded as its active principle. It is also found with other alkaloids in the thorn apple and deadly nightshade. It is extracted as a white crystalline substance, with a sharp, offensive taste. Hyoscyamine is isomeric with atropine, is very poisonous, and is used as a medicine for neuralgia, like belladonna. Called also hyoscyamia, duboisine, etc.
- Propenyl - n. - A hypothetical hydrocarbon radical, C3H5, isomeric with allyl and glyceryl, and regarded as the essential residue of glycerin. Cf. Allyl, and Glyceryl.
- Dipropargyl - n. - A pungent, mobile, volatile liquid, C6H6, produced artificially from certain allyl derivatives. Though isomeric with benzine, it is very different in its chemical relations. Called also dipropinyl.
- Pimaric - a. - Pertaining to, or designating, an acid found in galipot, and isomeric with abietic acid.
- Lichenin - n. - A substance isomeric with starch, extracted from several species of moss and lichen, esp. from Iceland moss.
- Is- - - Applied to compounds of certain isomeric series in whose structure one carbon atom, at least, is connected with three other carbon atoms; -- contrasted with neo- and normal; as in isoparaffine; isopentane.
- Hesperidene - n. - An isomeric variety of terpene from orange oil.
- Galactose - n. - A white, crystalline sugar, C6H12O6, isomeric with dextrose, obtained by the decomposition of milk sugar, and also from certain gums. When oxidized it forms mucic acid. Called also lactose (though it is not lactose proper).