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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 ?
WANT YOU BACK 50 Shades of Red, White And Blue is hitting Belfast
THEY often flower longer and later than other bedding plants, but these elegant half-hardy annuals, which produce large, daisy-like flowers in shades of red, pink and white in summer to autumn, add a splash of colour to the border.
Six assorted scented pinks, beautifully perfumed and excellent for cutting, in shades of red, pink and white for an amazing pounds 4.
And if you want to look drop red gorgeous, you'll have to be a lady in many shades of red.
Tight clusters of flat flowers come in white, shades of red, and two-color combinations.
As the weather cools and leaves turn glorious shades of red, orange and yellow, Mimi's Cafe welcomes the fall harvest with new, robust dishes highlighting seasonal flavors such as pumpkin spice, butternut squash and cinnamon apple.
I'm sure most people will be Fifty Shades of red when our crews arrive.
japonica, but some of the less popular varieties actually produce the best autumn colours, in shades of red, purple and crimson.
It uses three shades of red - you have a true red, a scarlet pink and a crimson.
BEST OF THE BUNCH Cyclamen coum is a splendid little plant, growing to just 5-8cm (2-3in), with swept-back petals in shades of red, pink or white, on leafless flower stalks.
Rhus (Sumach) THESE small deciduous trees are grown primarily for their stunning autumn leaves which turn brilliant shades of red, orange and yellow at this time of year.
If you clipped some of the colourful leafless stems from your dogwoods over the festive season, you'll realise what valuable plants they are, producing vibrant stems in shades of red, orange, yellow, pink and purple/black.