| Asperger's syndrome |
a mild autism spectrum disorder in which afflicted individuals are generally of normal intelligence but have poor social and nonverbal communication skills. |
| blue |
the color of a cloudless sky; the color between green and violet on the spectrum. [1/8 definitions] |
| centrist |
a person whose ideology lies near the center of the political spectrum; moderate. [1/2 definitions] |
| complementary colors |
two colors of the spectrum, such as green and red, that produce a white or near-white when mixed in the right proportion. |
| diffraction grating |
a set of equidistant parallel lines or grooves made very close together on glass or polished metal, used to diffract light and produce a spectrum. |
| echolalia |
the uncontrollable repetition of words spoken by another person, often associated with autism spectrum disorder or with other developmental or mental disorders. |
| green |
the color of emeralds or of young, growing foliage; the color lying between yellow and blue on the spectrum. [1/17 definitions] |
| hue1 |
any of the variations of color that occur at points on the spectrum; color as distinguished from shades of gray. [1/3 definitions] |
| indigo |
the color between blue and violet on the spectrum. [1/3 definitions] |
| infrared |
the invisible electromagnetic radiation next to and longer in wavelength than those of the visible red end of the spectrum. [1/2 definitions] |
| iridescent |
emitting or reflecting a lustrous play of colors covering the spectrum, like a rainbow. [1/2 definitions] |
| opalescent |
exhibiting a spectrum of colors or changing colors like that of an opal; iridescent. [1/2 definitions] |
| orange |
the color of this fruit when ripe; the color between red and yellow on the spectrum. [1/5 definitions] |
| primary color |
any one of the three basic colors of the spectrum from which all other colors can be made by blending. In paint, they are red, yellow, and blue. |
| prism |
a transparent, usu. glass solid with parallel ends of the same size and shape and parallelograms as sides, used to bend light so as to produce the continuous color spectrum of a rainbow. [1/2 definitions] |
| radio spectrum |
the portion of the electromagnetic spectrum consisting of radio waves, esp. those most frequently used in radio and television broadcasting, from ten kilohertz to 300 gigahertz. |
| rainbow |
an arc in the sky containing the colors of the visible spectrum, which results from the shining of sunlight on water droplets during or after a rain. [1/2 definitions] |
| red |
any of several colors that resemble the color of blood; the first color on the spectrum. [1/7 definitions] |
| resolution |
the process of separating into constituent parts, as light into the colors of the spectrum. [1/8 definitions] |
| spectra |
a plural form of spectrum. |
| spectral |
of, pertaining to, produced by, or like a spectrum. [1/2 definitions] |