Definition of "allergy" []

• An abnormally high sensitivity to certain substances, such as pollens, foods, or microorganisms. Common indications of allergy may include sneezing, itching, and skin rashes. (noun)
• Informal An adverse sentiment; antipathy: an allergy to cocktail parties. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Cow's milk protein allergy is the overall term for several types of dairy allergies, which can be to the casein or to the whey or both."
• "Cow's milk protein allergy is associated with these symptoms but I know of no studies that says LI is."
• "Cows milk protein allergy is the most common cause of food allergy in infants and affects up to 3 per cent of babies, the survey said."