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1. the color produced by the longest waves of the visible spectrum, approximately 630 to 750 nm.
2. a dye or stain with this color.
scarlet red an azo dye used as a biological stain for fats.


One of the primary colors, produced by the longest waves of the visible spectrum, with violet at the other end. For individual red dyes, see specific name.
[A.S. reád]


1. the color produced by the longest waves of the visible spectrum, approximately 630 to 750 nm.
2. a dye or stain with this color.

scarlet red  an azo dye used as a biological stain for fats.
Drug slang A regional term for, ‘under the influence of drugs, stoned’
Fringe medicine A colour believed—by the proponents of the pseudoscience of colour therapy—to increase circulation and energy, and reduce anxiety
Physics A primary colour produced by the longest waves of the visible electromagnetic spectrum from 630 to 740 nm


adj in Chinese medicine, a facial coloration indicative of hot energy, poor digestion, and possible respiratory inflammation. See also energy, hot.


One of the hues of the visible spectrum evoked by stimulation of the retina by wavelengths beyond 630 nm. The complementary colours to red are blue-green (between 490.4 and 492.4 nm).


the color at the lowest end of the visible spectrum; the color of blood.

red dye
used in food coloring, reputed to reduce fertility.

Patient discussion about red

Q. is red meat bad for you??? and what about white meat like pork??? why is consider to be healthy eating vegie what are the advantages of this kind of nutrition ? what are the actual differences in a nutrition matter ?

A. Eating red meat an average of about twice a day seems to raise the risk of stomach cancer. This risk is increased even more if the meat is barbecued and well done. there are more evidence about colon cancer , and also higher risk of strokes. but i have no idea about white meat. although barbecued meat (white or red) had a material that our liver cause it to be cancerous.

Q. Does anybody know what can be done about a very itchy red rash on ones' toes which comes back every few months I've used different sorts of creams such as Lamasil. It's really bothering me and I'd love to get a few directions before I give up and go see a doctor.

A. Sounds like 'Athletes foot'. Here is a website that lists some remedies for it:'s_Foot.cfm

Q. I have red blotches under my skin and swelling on hands and feet with joint pain. Any answers. it has been two days the blotches are gone but I still have swelling.

A. could be some kind of joint Rheumatic fever... some kind of joint infection. this should be looked upon by a Dr. those things can cause damage if not treated right. a bacterial infection that is not treated can cause a permanent damage.

More discussions about red
References in periodicals archive ?
Mick Turner then grabbed the winning goal before Lee Darlison also saw red.
But after Petrov's deflected lifeline, Edgar Davids saw red in his first match back after his drugs ban and the Italians had to hang on to win the Group E opener.
And despite going down to 10 men when Coke saw red, Sevilla added a fourth through Kevin Gamiero before Ricardo Quaresma's last-gasp consolation.
Richie Kehoe then saw red after an off the ball incident with Neil McManus and Shiels pointed the resultant free to leave Antrim 0-6 to 0-5 ahead at the break.
Iain Diack fired Lok ahead after 17 minutes from a Barr header before the Bankies bagged the leveller and Wilson saw red.
Greenway saw red on the hour mark for a foul on Simon Fitter, but three minutes later Doughty smashed home a 20-yard free-kick for his first goal for the club.
The quickest sending-off in FA Cup history was at Goodison in January 1997 when Swindon's Ian Culverhouse saw red after just 85 seconds for handling on the line.
Carl Baker saw red for his lunge at Richie Wellens.
Peter Jackson's men saw their hopes of victory in ruins after striker Ollie Ryan saw red shortly before McGleish netted the only goal of the game in a frantic first-half.
Moments later Hornsby was shown the red card as a result of his second yellow card for disputing a decision while Gamble saw red 20 minutes from time after a mistimed lunge on a Willenhall striker.
Gerrard had scored early in the second half to cancel out Dion Dublin's early header, but the midfielder saw red for a late tackle on George Boateng.
Saints hit back through Adam Lallana's strike before Mathieu Flamini saw red for a lunge on Morgan Schneiderlin.