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Pertaining to, or designating, an isomeric variety of lastic acid that breaks down into acrylic acid and water.

of shrubby plants bearing opposite leaves and large heads of showy flowers, white, or of various colors. H. hortensis, the common garden species, is a native of China or Japan.

An instrument, variously constructed, used for measuring the velocity or discharge of water, as in rivers, from reservoirs, etc., and called by various specific names according to its construction or use, as tachometer, rheometer, hydrometer, pendulum, etc.; a current gauge.

A variety of potash mica containing water. It is less elastic than ordinary muscovite. Hydromica schist (Min.), a mica schist characterized by the presence of hydromica. It often has a silky luster and almost soapy feel.

A semitranslucent variety of opal that becomes translucent or transparent on immersion in water.

An instrument for recording automatically the variations of the humidity of the atmosphere.

piral curve, the law of which is, that the distance from the pole to the generating point varies inversely as the angle swept over by the radius vector.

orous acid (Chem.), an acid derived from chlorine, not known in a pure state, but forming various salts, called hypochlorites.

ccounting for some fact or phenomenon. Causes hypothetical at least, if not real, for the various phenomena of the existence of which our experience informs us. Sir W. Hamilton. Hypothetical baptism (Ch. of Eng.), baptism administered to persons in respect to whom it is doubtful whether they have or have not been bapti…

Any gastropod of the genus Ianthina, of which various species are found living in mid ocean; -- called also purple shell, and violet snail. [Written also janthina.]

-- Ice sludge, bay ice broken small by the wind or waves; sludge. -- Ice spar (Min.), a variety of feldspar, the crystals of which are very clear like ice; rhyacolite. -- Ice tongs, large iron nippers for handling ice. -- Ice water. (a) Water cooled by ice. (b) Water formed by the melting of ice. -- Ice yacht. See…

A transparent variety of calcite, the best of which is obtained in Iceland. It is used for the prisms of the polariscope, because of its strong double refraction. Cf. Calcite.

ain and Palestine, is noted for destroying the eggs and young of the crocodile as well as various snakes and lizards, and hence was considered sacred by the ancient Egyptians. The common species of India (H. griseus), known as the mongoose, has similar habits and is often domesticated. It is noted for killing the cobra…

small fresh-water cyprinoid fish (Leuciscus idus or Idus idus) of Europe. A domesticated variety, colored like the goldfish, is called orfe in Germany.

Dialect; a variant form of a language.

The condition or quality of being idle (in the various senses of that word); uselessness; fruitlessness; triviality; inactivity; laziness.

Literally, those who are enlightened; -- variously applied as follows: -

A variety of sugar, found in certain plants. It is optically inactive.

Want of stability or uniformity; unsteadiness; changeableness; variableness. Mutability of temper, and inconsistency with ourselves, is the greatest weakness of human nature. Addison.

Not consistent; showing inconsistency; irreconcilable; discordant; at variance, esp. as regards character, sentiment, or action; incompatible; incongruous; contradictory.