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Isatogen :: Isatogen (n.) A complex nitrogenous radical, C8H4NO2, regarded as the essential residue of a series of compounds, related to isatin, which easily pass by reduction to indigo blue..

Strength :: Strength (n.) Intensity or degree of the distinguishing and essential element; spirit; virtue; excellence; -- said of liquors, solutions, etc.; as, the strength of wine or of acids..

Life :: Life (n.) An essential constituent of life, esp. the blood..

Adventitious :: Adventitious (a.) Added extrinsically; not essentially inherent; accidental or causal; additional; supervenient; foreign.

Thienyl :: Thienyl (n.) The hypothetical radical C4H3S, regarded as the essential residue of thiophene and certain of its derivatives..

Strata :: Strass (n.) A brilliant glass, used in the manufacture of artificial paste gems, which consists essentially of a complex borosilicate of lead and potassium. Cf. Glass..

Mark :: Mark (n.) A characteristic or essential attribute; a differential.

Blossom :: Blossom (n.) The flower of a plant, or the essential organs of reproduction, with their appendages; florescence; bloom; the flowers of a plant, collectively; as, the blossoms and fruit of a tree; an apple tree in blossom..

Element :: Element (n.) One of the ultimate parts which are variously combined in anything; as, letters are the elements of written language; hence, also, a simple portion of that which is complex, as a shaft, lever, wheel, or any simple part in a machine; one of the essential ingredients of any mixture; a constituent part; as, quartz, feldspar, and mica are the elements of granite..

Patchouly :: Patchouly (n.) A mintlike plant (Pogostemon Patchouli) of the East Indies, yielding an essential oil from which a highly valued perfume is made..

Natural :: Natural (a.) Fixed or determined by nature; pertaining to the constitution of a thing; belonging to native character; according to nature; essential; characteristic; not artifical, foreign, assumed, put on, or acquired; as, the natural growth of animals or plants; the natural motion of a gravitating body; natural strength or disposition; the natural heat of the body; natural color..

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

Inwardness :: Inwardness (n.) Internal or true state; essential nature; as, the inwardness of conduct..

Accident :: Accident (n.) Any accidental property, fact, or relation; an accidental or nonessential; as, beauty is an accident..

Volumescope :: Volumescope (n.) An instrument consisting essentially of a glass tube provided with a graduated scale, for exhibiting to the eye the changes of volume of a gas or gaseous mixture resulting from chemical action, and the like..

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..

Spermaceti :: Spermaceti (n.) A white waxy substance obtained from cavities in the head of the sperm whale, and used making candles, oilments, cosmetics, etc. It consists essentially of ethereal salts of palmitic acid with ethal and other hydrocarbon bases. The substance of spermaceti after the removal of certain impurities is sometimes called cetin..

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..

Organism :: Organism (n.) An organized being; a living body, either vegetable or animal, compozed of different organs or parts with functions which are separate, but mutually dependent, and essential to the life of the individual..

Glycolyl :: Glycolyl (n.) A divalent, compound radical, CO.CH2, regarded as the essential radical of glycolic acid, and a large series of related compounds..

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