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Related to bluish: bluish green

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

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.

blue

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

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)].
References in periodicals archive ?
Mac lipliner in Follow Your Heart A smooth creamy lipliner in a bright bluish red to define your pout, PS13, www.
SLURRED speech or confusion EXTREME shivering or muscle pain PASSING no urine all day SEVERE breathlessness A FEELING of doom or that you might die SKIN | that's mottled, bluish or very pale die THESE symptoms won't always indicate sepsis, but the UK Sepsis Trust advises that if you have, or recently had, a fever or an illness that's felt like a nasty cold/flu or a tummy bug and you develop any of these things, seek medical help urgently - phone 999 and say you're worried you have sepsis.
SLURRED speech or confusion | | | EXTREME shivering or muscle pain | PASSING no urine all day | SEVERE breathlessness | A| | A FEELING of doom or that you might die | SKIN that's mottled, bluish or very pale THESE symptoms won't always indicate sepsis, but the UK Sepsis Trust advises that if you have, or recently had, a fever or an illness that's felt like a nasty cold/flu or a tummy bug and you develop any of these things, seek medical help urgently - phone 999 and say you're worried you have sepsis.
Together, P lena and P hyalinus are recognized by their purple bluish hind wings.
The bluish color may have helped camouflage eggs laid in open nests, the authors suggest.
BASF also launched Paliocrom Sparkling Red as an exclusive bluish red product in the market.
Carmine had been traditionally used to achieve bright red to bluish pink hues in many dairy and fruit ice preparations.
Q Sometimes I notice that my fingernails and the skin on my fingertips have a bluish tint.
According to the company, the high jetness and bluish undertone make it suitable for automotive OEM and refinish systems.
Using Hubble's STIS spectrograph, the team measured the star-planet system's brightness in bluish and greenish light before, during, and after the planet slipped behind the star.
These reveal an increasing fascination with white, characterized by the development of many individualized shades of white, among them milky white, snow white, greyish white, and bluish white.
Q I recently bought an older house and the windows have a slight bluish tint outdoors on sunny days.