blue

blue (butterfly)

Any member of the widely occurring lepidopteran family Lycaenidae. Adults, sometimes known as gossamer-winged butterflies, are small and delicate, with a wingspan of 0.75–1.5 in. (18–38 mm). Blues are rapid fliers, and most species have iridescent wings. Larvae are short, broad, and sluglike. Some species secrete honeydew, a sweet by-product of digestion that attracts ants, which stroke the larvae with their legs to stimulate honeydew secretion.

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blue

1. any of a group of colours, such as that of a clear unclouded sky, that have wavelengths in the range 490--445 nanometres. Blue is the complementary colour of yellow and with red and green forms a set of primary colours

2. 

a. a sportsman who represents or has represented Oxford or Cambridge University and has the right to wear the university colour (dark blue for Oxford, light blue for Cambridge)

b. the honour of so representing one's university

3. Brit an informal name for Tory

4. any of numerous small blue-winged butterflies of the genera Lampides, Polyommatus, etc.: family Lycaenidae

5. Archery a blue ring on a target, between the red and the black, scoring five points

6. a blue ball in snooker, etc

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blue [blü]

(optics)

The hue evoked in an average observer by monochromatic radiation having a wavelength in the approximate range from 455 to 492 nanometers; however, the same sensation can be produced in a variety of other ways.

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blue

in American flag, symbolizes justice. [Color Symbolism: Leach, 242; Jobes, 356]

See : Justice

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Blue - A language proposed by Softech to meet the DoD Ironman requirements which led to Ada. ["On the BLUE Language Submitted to the DoD", E.W. Dijkstra, SIGPLAN Notices 13(10):10-15 (Oct 1978)].