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in a planet's orbit where it intersects the ecliptic in passing southward. -- Descending series (Math.), a series in which each term is numerically smaller than the preceding one; also, a series arranged according to descending powers of a quantity.

ive sorties ( (Logic), a process of reasoning which involves the denial of the first of a series of dependent propositions as a consequence of the denial of the last; a species of reductio ad absurdum. Whately.

The sum of a series of products of several numbers, these products being formed according to certain specified laws; thus, the determinant of the nine numbers. a, b, c,a', b', c',a'\'b7, b'\'b7, c'\'b7, is a b' c'\'b7 -- a b'\'b7 c' + a' b'\'b7 c] -- a' b c'\'b7 + a'\'b7 b' c. The determinant is written by placing the…

A prefix which formerly properly indicated the second in a regular series of compound in the series, and not to its composition, but which is now generally employed in the same sense as bi- or di-, although little used.

or method, or an image upon a photographic plate; gradual advancement or growth through a series of progressive changes; also, the result of developing, or a developed state. A new development of imagination, taste, and poetry. Channing.

quid hydrocarbon, C6H10, consisting of two allyl radicals, and belonging to the acetylene series.

A liquid hydrocarbon, C10H20, of the ethylene series, regarded as a polymeric form of amylene.

A combining form (also used adjectively), meaning pertaining to, or derived from, a series of compounds containing a radical of two nitrogen atoms, united usually to an aromatic radical; as, diazo- benzene, C6H5.N2.OH.

A liquid hydrocarbon, C8H18, of the marsh-gas series, being one of several octanes, and consisting of two butyl radicals. Cf. Octane.

A form of conductor used for dividing and distributing the current to a series of electric lamps so as to maintain equal action in all. Knight. Partial differential (Math.), the differential of a function of two or more variables, when only one of the variables receives an increment. -- Total differential (Math.), the…

e, nitrogenous substance obtained by the reduction of isatin. It is a member of the indol series; -- hence its name.

A picture or series of pictures painted on two tablets connected by hinges. See Triptych.

Breach or interruption of continuity; separation of parts in a connected series; discontinuance. Upon any discontinuation of parts, made either by bubbles or by shaking the glass, the whole mercury falls. Sir I. Newton.

One of several isomeric organic bases of the quinoline series of alkaloids.

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.

Fig.: Disagreeing from something given; differing; as, a divergent statement. Divergent series. (Math.) See Diverging series, under Diverging.

nding in different directions from a common center; spreading apart; divergent. Diverging series (Math.), a series whose terms are larger as the series is extended; a series the sum of whose terms does not approach a finite limit when the series is extended indefinitely; -- opposed to a converging series.…

A course of notes so running into each other as to form one series or chain, to be sung in one breath to one syllable.

Any one of a group of thick oily hydrocarbons, C12H26, of the paraffin series.

A sleeping room, or a building containing a series of sleeping rooms; a sleeping apartment capable of containing many beds; esp., one connected with a college or boarding school. Thackeray.