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Webster’s Dictionary (1828)



733 words match “COMPOUND”

DIATESSARON n.
An electuary compounded of four medicines.
DIAZO- n.
mbining 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.
DIAZOTIZE v.
To subject to such reactions or processes that diazo compounds, or their derivatives, shall be produced by chemical exchange or substitution.
DICHROMIC a.
Furnishing or giving two colors; -- said of defective vision, in which all the compound colors are resolvable into two elements instead of three. Sir J. Herschel.
DICYANIDE n.
A compound of a binary type containing two cyanogen groups or radicals; -- called also bicyanide.
DIFFERENTIAL a.
ifferential combination produces such a change of motion or force as would, with ordinary compound arrangements, require a considerable train of parts. It is used for overcoming great resistance or producing very slow or very rapid motion. -- Differential pulley. (Mach.) (a) A portable hoisting apparatus, the same in…
DIIODIDE n.
A compound of a binary type containing two atoms of iodine; -- called also biniodide.
DIMORPHISM n.
Crystallization in two independent forms of the same chemical compound, as of calcium carbonate as calcite and aragonite.
DISASSIMILATION n.
erse of assimilation; downward metabolism. The breaking down of already existing chemical compounds into simpler ones, sometimes called disassimilation. Martin.
DISCOID a.
orls in one plane, so as to form a disk, as the pearly nautilus. Discoid flower (Bot.), a compound flower, consisting of tubular florets only, as a tansy, lacking the rays which are seen in the daisy and sunflower.
DISCORDANT a.
clashing; opposing; not harmonious. The discordant elements out of which the emperor had compounded his realm did not coalesce. Motley.
DISK n.
The central part of a radiate compound flower, as in sunflower.
DISPOSITIONED a.
Having (such) a disposition; -- used in compounds; as, well- dispositioned.
DISSEPIMENT n.
One of the partitions which divide a compound ovary into cells.
DISSOCIATION n.
The process by which a compound body breaks up into simpler constituents; -- said particularly of the action of heat on gaseous or volatile substances; as, the dissociation of the sulphur molecules; the dissociation of ammonium chloride into hydrochloric acid and ammonia.
DISSOLUTION n.
Change of form by chemical agency; decomposition; resolution. The dissolution of the compound. South.
DISTILLATION n.
mplex solid substances, so that the ultimate constituents are separated or evolved in new compounds, -- usually requiring a high degree of heat; as, the destructive distillation of soft coal or of wood. -- Dry distillation, the distillation of substances by themselves, or without the addition of water or of other vola…
DISTINGUISHABLE a.
as, a tree at a distance is distinguishable from a shrub. A simple idea being in itself uncompounded . . . is not distinguishable into different ideas. Locke.
DISULPHIDE n.
A binary compound of sulphur containing two atoms of sulphur in each molecule; -- formerly called disulphuret. Cf. Bisulphide.
DOVER'S POWDER n.
A powder of ipecac and opium, compounded, in the United States, with sugar of milk, but in England (as formerly in the United States) with sulphate of potash, and in France (as in Dr. Dover's original prescription) with nitrate and sulphate of potash and licorice. It is an anodyne diaphoretic.
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