Also found in: Dictionary, Thesaurus, Legal, Acronyms, Idioms, Encyclopedia, Wikipedia.
Related to scratch: Scratch games


1. to scrape or rub a surface lightly with the nails or with a sharp or jagged instrument, particularly to relieve itching.
2. a slight wound.
3. to make shallow cuts on a surface.
4. to make a thin grating sound.


(skrach) [ME. cracchen, to scratch]
1. A mark or superficial injury produced by scraping with the nails on a rough surface.
2. To make a thin, shallow cut with a sharp instrument.
3. To rub the skin, esp. with the fingernails, to relieve itching. Scratching temporarily relieves itching by soothing the cutaneous nerves, but in the long run, it may worsen the condition that caused the itching. See: pruritus

Patient discussion about scratch

Q. why do allergy effects comes usually in sorts of sneezing and scratching and more other thing like that?

A. It's because the substances released in the allergic reaction of the immune system to the allergen, like histamine, cause sensation of itching. They also cause increased secretion of mucus from the lining of the throat, which irritates the airway and cause sneezing.

You may read more here:

Q. Is there any information out there regarding a severe allergy to cat scratches? Is there any information out there regarding a severe allergy to cat scratches? I am not referring to "cat scratch fever" disease, but an allergy where the site of the scratch becomes swollen and red, and the person has hives and trouble breathing. Thanks so much!

A. Greetings Humble Earthling! It sounds like you have two or more things going on. First, cat scratch fever is caused by a parasite and comes on 1 to 2 weeks after the scratch. Allergic reactions are immediate.
Now, if the site of the scratch is swollen and red, that could be due to minor infection and just the process of healing.

More discussions about scratch
References in periodicals archive ?
According to the company, in addition to custom scratch off card production, they also offer over 45 different sizes, shapes and colors of scratch off stickers.
My husband and I started treating our newly scratched floors with Scratch and now we have no more visible scratches.
Ooredoo offers a full family of Mobile Data Scratch Cards, including 250MB of data for only QR20, 1GB of data for only QR60, 3GB of data for QR80, and 6GB for QR100.
Just like Scrooge (but without the scary ghosts), Mr Scratch is given three chances for redemption in a series of scenes involving cowboys, pirates and elves.
Mobile Data Scratch Cards will be valid for 30 days once activated, and customers can use above one scratch card in the 30-day validity period.
tested two food packaging films in an attempt to correlate field performance to scratch performance, and to layer-by-layer microscopy analysis through the use of a developed cross-sectioning and imaging procedure (25).
The beauty of Scratch is that it starts with something very simple and encourages newcomers to learn one new thing at a time.
Although there have been recent improvements in topcoats, consumers continue to demand better abrasion and scratch resistance.
Wynyard took all 12 points in the scratch section but could only halve the handicap.
Scratch allows you to import sound or image files with just a couple clicks.
Cats tend to select a few objects in their environments to scratch, such as trees, fence posts, the corners of the sofa etc.
Abstract A new approach for evaluating the wet-adhesive strength of epoxy-based coatings was carried out based on a recently standardized ASTM/ISO scratch test.