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Hexdecyl :: Hexdecyl (n.) The essential radical, C16H33, of hecdecane..

Sloop :: Sloop (n.) A vessel having one mast and fore-and-aft rig, consisting of a boom-and-gaff mainsail, jibs, staysail, and gaff topsail. The typical sloop has a fixed bowsprit, topmast, and standing rigging, while those of a cutter are capable of being readily shifted. The sloop usually carries a centerboard, and depends for stability upon breadth of beam rather than depth of keel. The two types have rapidly approximated since 1880. One radical distinction is that a slop may carry a centerboard. See

Propinyl :: Propinyl (n.) A hydrocarbon radical regarded as an essential residue of propine and allied compounds.

Methenyl :: Methenyl (n.) The hypothetical hydrocarbon radical CH, regarded as an essential residue of certain organic compounds..

Trivalent :: Trivalent (a.) Having a valence of three; capable of being combined with, substituted for, or compared with, three atoms of hydrogen; -- said of triad atoms or radicals; thus, nitrogen is trivalent in ammonia..

Base :: Base (n.) The positive, or non-acid component of a salt; a substance which, combined with an acid, neutralizes the latter and forms a salt; -- applied also to the hydroxides of the positive elements or radicals, and to certain organic bodies resembling them in their property of forming salts with acids..

Oxalyl :: Oxalyl (n.) A hydrocarbon radical (C2O2) regarded as a residue of oxalic acid and occurring in derivatives of it.

Tertiary :: Tertiary (a.) Possessing some quality in the third degree; having been subjected to the substitution of three atoms or radicals; as, a tertiary alcohol, amine, or salt. Cf. Primary, and Secondary..

Sulphionide :: Sulphion (n.) A hypothetical radical, SO4, regarded as forming the acid or negative constituent of sulphuric acid and the sulphates in electrolytic decomposition; -- so called in accordance with the binary theory of salts..

Dibasic :: Dibasic (a.) Having two acid hydrogen atoms capable of replacement by basic atoms or radicals, in forming salts; bibasic; -- said of acids, as oxalic or sulphuric acids. Cf. Diacid, Bibasic..

Myricyl :: Myricyl (n.) A hypothetical radical regarded as the essential residue of myricin; -- called also melissyl.

Diureide :: Diureide (n.) One of a series of complex nitrogenous substances regarded as containing two molecules of urea or their radicals, as uric acid or allantoin. Cf. Ureide..

Substitute :: Substituent (n.) Any atom, group, or radical substituted for another, or entering a molecule in place of some other part which is removed..

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

Nitro- :: Nitro- () A combining form (used also adjectively) designating certain compounds of nitrogen or of its acids, as nitrohydrochloric, nitrocalcite; also, designating the group or radical NO2, or its compounds, as nitrobenzene..

Aniline :: Aniline (n.) An organic base belonging to the phenylamines. It may be regarded as ammonia in which one hydrogen atom has been replaced by the radical phenyl. It is a colorless, oily liquid, originally obtained from indigo by distillation, but now largely manufactured from coal tar or nitrobenzene as a base from which many brilliant dyes are made..

Ammonium :: Ammonium (n.) A compound radical, NH4, having the chemical relations of a strongly basic element like the alkali metals..

Hexyl :: Hexyl (n.) A compound radical, C6H13, regarded as the essential residue of hexane, and a related series of compounds..

Haloid :: Haloid (a.) Resembling salt; -- said of certain binary compounds consisting of a metal united to a negative element or radical, and now chiefly applied to the chlorides, bromides, iodides, and sometimes also to the fluorides and cyanides..

Heptavalent :: Heptavalent (a.) Having seven units of attractive force or affinity; -- said of heptad elements or radicals.

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