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e by combining water with an oxide, and yielding water by elimination. The hydroxides are regarded as compounds of hydroxyl, united usually with basic element or radical; as, calcium hydroxide ethyl hydroxide.

A theory which regards matter as the original principle of evil.

An alkaloid found in henbane (Hyoscyamus niger), and regarded as its active principle. It is also found with other alkaloids in the thorn apple and deadly nightshade. It is extracted as a white crystalline substance, with a sharp, offensive taste. Hyoscyamine is isomeric with atropine, is very poisonous, and is used as…

opposite cone, another curve will be formed, which is also an hyperbola. Both curves are regarded as branches of the same hyperbola. See Illust. of Conic section, and Focus.

y the slow oxidation of moist phosphorus, and isolated only as a solution in water. It is regarded as a condensation product of one molecule of phosphoric acid with one of phosphorous acid, by partial dehydration.

To make into, or regarded as, a separate and distinct substance. Looked upon both species and genera as hypostatized universals. Pop. Sci. Monthly.

A mental conception regarded as a standard of perfection; a model of excellence, beauty, etc. The ideal is to be attained by selecting and assembling in one whole the beauties and perfections which are usually seen in different individuals, excluding everything defective or unseemly, so as to form a type or model of th…

An individual cell, differing greatly from its neighbours in regard to size, structure, or contents.

Hence: To refuse to take notice of; to shut the eyes to; not to recognize; to disregard willfully and causelessly; as, to ignore certain facts; to ignore the presence of an objectionable person. Ignoring Italy under our feet, And seeing things before, behind. Mrs. Browning.

or muscle of the hip joint, divisible into two parts, the iliac and great psoas, -- often regarded as distinct muscles.

ically, in the plural, a name formely applied to heat, light, electricity, and magnetism, regarded as subtile flyids destitute of weight but in modern science little used.

The pressure of the type on the paper, or the result of such pressure, as regards its appearance; as, a heavy impression; a clear, or a poor, impression; also, a single copy as the result of printing, or the whole edition printed at a given time. Ten impressions which his books have had. Dryden.

The quality or state of being imprudent; want to caution, circumspection, or a due regard to consequences; indiscretion; inconsideration; reshness; also, an imprudent act; as, he was guilty of an imprudence. His serenity was interrupted, perhaps, by his own imprudence. Mickle.

The quality of being impudent; assurance, accompanied with a disregard of the presence or opinions of others; shamelessness; forwardness; want of modesty. Clear truths that their own evidence forces us to admit, or common experience makes it impudence to deny. Locke. Where pride and impudence (in fashion knit) Usurp th…

Bold, with contempt or disregard; unblushingly forward; impertinent; wanting modesty; shameless; saucy. More than impudent sauciness. Shak. When we behold an angel, not to fear Is to be impudent. Dryden.

To take account of; to consider; to regard. [R.] If we impute this last humiliation as the cause of his death. Gibbon.

Not apprehensive; regardless; unconcerned. Jer. Taylor.

Want of attention, or failure to pay attention; disregard; heedlessness; neglect. Novel lays attract our ravished ears; But old, the mind inattention hears. Pope.

Not attentive; not fixing the mind on an object; heedless; careless; negligent; regardless; as, an inattentive spectator or hearer; an inattentive habit. I. Watts.

incidental occurrence; incidental expenses. By some, religious duties . . . appear to be regarded . . . as an incidental business. Rogers.