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Rh/tic :: Rh/tic (a.) Pertaining to, or of the same horizon as, certain Mesozoic strata of the Rhetian Alps. These strata are regarded as closing the Triassic period. See the Chart of Geology..

Galactometer :: Galactometer (n.) An instrument for ascertaining the quality of milk (i.e., its richness in cream) by determining its specific gravity; a lactometer..

Oared :: Oared (a.) Totipalmate; -- said of the feet of certain birds. See Illust. of Aves.

Anandrous :: Anandrous (a.) Destitute of stamens, as certain female flowers..

Conditioned :: Conditioned (a.) Surrounded; circumstanced; in a certain state or condition, as of property or health; as, a well conditioned man..

Druid :: Druid (n.) One of an order of priests which in ancient times existed among certain branches of the Celtic race, especially among the Gauls and Britons..

Leveling :: Leveling (n.) The art or operation of using a leveling instrument for finding a horizontal line, for ascertaining the differences of level between different points of the earth's surface included in a survey, for establishing grades, etc., as in finding the descent of a river, or locating a line of railroad..

Residentiary :: Residentiary (n.) An ecclesiastic who keeps a certain residence.

Sustainer :: Sustained (a.) Held up to a certain pitch, degree, or level; uniform; as, sustained pasion; a sustained style of writing; a sustained note in music..

Mid :: Mid (superl.) Made with a somewhat elevated position of some certain part of the tongue, in relation to the palate; midway between the high and the low; -- said of certain vowel sounds; as, a (ale), / (/ll), / (/ld). See Guide to Pronunciation, // 10, 11..

Nicotidine :: Nicotidine (n.) A complex, oily, nitrogenous base, isomeric with nicotine, and obtained by the reduction of certain derivatives of the pyridine group..

Know :: Know (v. i.) To perceive or apprehend clearly and certainly; to understand; to have full information of; as, to know one's duty..

Lead :: Lead (v. t.) To guide or conduct in a certain course, or to a certain place or end, by making the way known; to show the way, esp. by going with or going in advance of. Hence, figuratively: To direct; to counsel; to instruct; as, to lead a traveler; to lead a pupil..

Derivative :: Derivative (n.) A derived function; a function obtained from a given function by a certain algebraic process.

Ditokous :: Ditokous (a.) Having two kinds of young, as certain annelids..

Tetrazone :: Tetrazone (n.) Any one of a certain series of basic compounds containing a chain of four nitrogen atoms; for example, ethyl tetrazone, (C2H5)2N.N2.N(C2H5)2, a colorless liquid having an odor of leeks..

Is- :: Is- () Applied to compounds of certain isomeric series in whose structure one carbon atom, at least, is connected with three other carbon atoms; -- contrasted with neo- and normal; as in isoparaffine; isopentane..

Unsaturated :: Unsaturated (a.) Capable of taking up, or of uniting with, certain other elements or compounds, without the elimination of any side product; thus, aldehyde, ethylene, and ammonia are unsaturated..

Galbanum :: Galbanum (n.) A gum resin exuding from the stems of certain Asiatic umbelliferous plants, mostly species of Ferula. The Bubon Galbanum of South Africa furnishes an inferior kind of galbanum. It has an acrid, bitter taste, a strong, unpleasant smell, and is used for medical purposes, also in the arts, as in the manufacture of varnish..

Ophiophagous :: Ophiophagous (a.) Feeding on serpents; -- said of certain birds and reptiles.

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