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A complex derivative of cyanogen, regarded as an acid, and known chiefly in its salts; -- called also hydromellonic acid.

ducts itself like a member of the halogen group of elements, and shows a tendency to form complex compounds. The name is also applied to the univalent radical, CN (the half molecule of cyanogen proper), which was one of the first compound radicals recognized.

of color; not light-colored; as, a dark room; a dark day; dark cloth; dark paint; a dark complexion. O dark, dark, dark, amid the blaze of noon, Irrecoverable dark, total eclipse Without all hope of day! milton. In the dark and silent grave. Sir W. Raleigh.

esult or consequence. All properties of a triangle depend on, and are deducible from, the complex idea of three lines including a space. Locke.

Soft and fair; -- said of the skin or a surface; as, a delicate cheek; a delicate complexion.

e, satellite, and the like. This earth and its dependencies. T. Burnet. Modes I call such complex ideas which . . . are considered as dependencies on or affections of substances. Locke.

t or more highly organized state; to advance from a simpler form of existence to one more complex either in structure or function; as, a blossom develops from a bud; the seed develops into a plant; the embryo develops into a well-formed animal; the mind develops year by year. Nor poets enough to understand That life de…

endency in being of every kind, whether organic or inorganic, to assume or produce a more complex structure or functions.

The decomposition of complex substances, within the organism, into simpler ones suitable only for excretion, with evolution of energy, -- a normal nutritional process the reverse of assimilation; downward metabolism. The breaking down of already existing chemical compounds into simpler ones, sometimes called disassimil…

To alter the true complexion or appearance of; to put a false hue upon. To discolor all your ideas. Wat

ed by distilling. Shak. Destructive distillation (Chem.), the distillation, especially of complex 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…

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.

Like dough; soft and heavy; pasty; crude; flabby and pale; as, a doughy complexion.

To fit in or connect strongly, skillfully, or nicely; to fit ingeniously or complexly. He put together a piece of joinery so crossly indented and whimsically dovetailed . . . that it was indeed a very curious show. Burke.

re binary in their nature, and consist of two distinct constituents, themselves simple or complex, and possessed of opposite chemical or electrical affinities.

ters 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. The simplicity which is so large…

To disguise with cosmetics, as a woman's complexion.

ments of some hero, are narrated in an elevated style. The epic poem treats of one great, complex action, in a grand style and with fullness of detail. T. Arnold.

The constituent elementary notions which constitute a complex notion, and must be enumerated to define it; sometimes called the nominal essence.

Any similar oxide of hydrocarbon radicals; as, amyl ether; valeric ether. Complex ether, Mixed ether (Chem.), an oxide of two different radicals in the same molecule; as, ethyl methyl ether, C2H5.O.CH3. -- Compound ether (Chem.), an ethereal salt or a salt of some hydrocarbon as the base; an ester. -- Ether engine (M…