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A method of notation for all spoken sounds, proposed by Mr. Sweet; -- so called because it is based on the common Roman-letter alphabet. It is like the palæotype of Mr. Ellis in the general plan, but simpler.

Free from color; colorless; as, in Physiol. Chem., the achromic point of a starch solution acted upon by an amylolytic enzyme is the point at which it fails to give any color with iodine.

Pertaining to an Attic festival at the naming of a child; -- so called because the friends of the parents carried the child around the hearth and then named it.

An agent that destroys offensive smells; a deodorizer.

of bromine in which this element has a valence of five, or the next to its highest; as, bromic acid.

rom, chromium; -- said of the compounds of chromium in which it has its higher valence. Chromic acid, an acid, H2CrO4, analogous to sulphuric acid, not readily obtained in the free state, but forming well known salts, many of which are colored pigments, as chrome yellow, chrome red, etc. -- Chromic anhydride, a brilli…

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.

Pertaining to, or produced by, heliochromy.

Composed of hydrogen and bromine; as, hydrobromic acid. Hydrobromic acid (Chem.), a colorless, pungent, corrosive gas, HBr, usually collected as a solution in water. It resembles hydrochloric acid, but is weaker and less stable. Called also hydrogen bromide.

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.

The art of printing colored pictures on canvas from oil paintings on stone.

Pertaining to sailing on rhumb lines; as, loxodromic tables. Loxodromic curve or line (Geom.), a line on the surface of a sphere, which always makes an equal angle with every meridian; the rhumb line. It is the line on which a ship sails when her course is always in the direction of one and the same point of the compas…

The art or method of sailing on the loxodromic or rhumb line.

Made, or done, with a single color; as, a monochromic picture.

Of or pertaining to orthodromy.

The art of sailing in a direct course, or on the arc of a great circle, which is the shortest distance between any two points on the surface of the globe; great-circle sailing; orthodromy.

Pertaining to, or designating, certain compounds of oxygen and bromine.

Of, pertaining to, or like, a palindrome.

Pertaining to, or designating, the highest oxygen acid, HBrO4, of bromine.

Pertaining to, or designating, a certain one of the highly oxidized compounds of chromium, which has a deep blue color, and is produced by the action of hydrogen peroxide.