chromato-, chromat-, chromo-, chrom-, chro-, -chrome, -chromasia, -chromia, -chromatism, -chromatic, -chromatically, -chromy

(Greek: color)

The art or process of printing color pictures from a series of stone or zinc plates by lithography.
chromopsia, chromatopsia
A visual defect in which colored objects appear unnaturally colored and colorless objects appear tinged with color.

The chromatopsias are named for the colors seen: cyanopsia, blue; chloropsia, green; erythropsia, red; and xanthopsia, yellow.

Chromatopsia may be caused by drugs, disturbance of the optic centers, cataract extraction, or dazzling light.

chromosome (s) (noun), chromosomes (pl)
1. Any of the threadlike structures in the nucleus of a cell that function in the transmission of genetic information.

Each chromosome consists of a double strand of DNA attached to proteins called histones.

The genes, which contain the genetic material that controls the inheritance of traits, are arranged in a linear pattern along the length of each DNA strand.

Each species has a characteristic number of chromosomes in each somatic cell. In humans, there are forty-six chromosomes, including twenty-two homologous pairs of autosomes and one pair of sex chromosomes.

One member of each pair is derived from each parent.

2. Etymology: from German Chromosom, coined in 1888 by the German anatomist, Wilhelm von Waldeyer-Hartz (1836-1921), from Greek khroma, "color" + soma, "body". This term was coined because the structures contain a substance that stains readily with basic dyes.
chromosphere (s) (noun), chromospheres (pl)
1. A gaseous layer of the sun's atmosphere; extending from the photosphere to the corona, that is visible during a total eclipse of the sun.
2. A scarlet, gaseous envelope surrounding the sun outside the photosphere, from which enormous quantities of hydrogen and other gases are erupted.
3. A layer of rarefied, transparent gases in the solar atmosphere which measures 6,000 miles (9,700 kilometers) in thickness and lies between the photosphere (the sun's visible surface) and the corona (its outer atmosphere).
4. A gaseous envelope surrounding a star.
1. A photographic picture in natural colors.
2. A sheet printed in colors by any process; such as, a chromolithograph (a colored picture produced by making and superimposing multiple lithographs, each of which adds a different color).
dichromatopsia, dichromatism
The condition, or state, of being dichromatic or exhibiting two colors.
Any deficiency in perception of color.
1. Deranged vision of colors; color blindness.
2. Disorder of color vision; imperfect color vision.