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Lime :: Lime (n.) Oxide of calcium; the white or gray, caustic substance, usually called quicklime, obtained by calcining limestone or shells, the heat driving off carbon dioxide and leaving lime. It develops great heat when treated with water, forming slacked lime, and is an essential ingredient of cement, plastering, mortar, etc..

Grenadine :: Grenadine (n.) A trade name for a dyestuff, consisting essentially of impure fuchsine..

Radical :: Radical (n.) A characteristic, essential, and fundamental constituent of any compound; hence, sometimes, an atom..

Lactucin :: Lactucin (n.) A white, crystalline substance, having a bitter taste and a neutral reaction, and forming one of the essential ingredients of lactucarium..

Scapolite :: Scapolite (n.) A grayish white mineral occuring in tetragonal crystals and in cleavable masses. It is essentially a silicate of alumina and soda.

Octoyl :: Octoyl (n.) A hypothetical radical (C8H15O), regarded as the essential residue of octoic acid..

Anomaly :: Anomaly (n.) Any deviation from the essential characteristics of a specific type.

Essential :: Essential (a.) Necessary; indispensable; -- said of those tones which constitute a chord, in distinction from ornamental or passing tones..

Crocidolite :: Crocidolite (n.) A mineral occuring in silky fibers of a lavender blue color. It is related to hornblende and is essentially a silicate of iron and soda; -- called also blue asbestus. A silicified form, in which the fibers penetrating quartz are changed to oxide of iron, is the yellow brown tiger-eye of the jewelers..

Accidental :: Accidental (n.) A property which is not essential; a nonessential; anything happening accidentally.

Formyl :: Formyl (n.) A univalent radical, H.C:O, regarded as the essential residue of formic acid and aldehyde..

Opera :: Opera (n.) A drama, either tragic or comic, of which music forms an essential part; a drama wholly or mostly sung, consisting of recitative, arials, choruses, duets, trios, etc., with orchestral accompaniment, preludes, and interludes, together with appropriate costumes, scenery, and action; a lyric drama..

Superethical :: Superessential (a.) Essential above others, or above the constitution of a thing..

Nataloin :: Nataloin (n.) A bitter crystalline substance constituting the essential principle of Natal aloes. Cf. Aloon.

Nonessential :: Nonessential (n.) A thing not essential.

Semiring :: Semiring (n.) One of the incomplete rings of the upper part of the bronchial tubes of most birds. The semerings form an essential part of the syrinx, or musical organ, of singing birds..

Property :: Property (a.) That which is proper to anything; a peculiar quality of a thing; that which is inherent in a subject, or naturally essential to it; an attribute; as, sweetness is a property of sugar..

Type :: Type (n.) A general form or structure common to a number of individuals; hence, the ideal representation of a species, genus, or other group, combining the essential characteristics; an animal or plant possessing or exemplifying the essential characteristics of a species, genus, or other group. Also, a group or division of animals having a certain typical or characteristic structure of body maintained within the group..

Gyrostat :: Gyrostat (n.) A modification of the gyroscope, consisting essentially of a fly wheel fixed inside a rigid case to which is attached a thin flange of metal for supporting the instrument. It is used in studying the dynamics of rotating bodies..

Fundamental :: Fundamental (n.) A leading or primary principle, rule, law, or article, which serves as the groundwork of a system; essential part, as, the fundamentals of the Christian faith..

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