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allethrin
alleviate
alley (1)
alley (2)
alley ball
alley cat
alley-oop
alley-oop 360
alley-oop soul
alleyway
Allhallows
Allhallows’ Eve
allheal
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Alliance of Small Island States
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allergen
al·ler·gen [ állərjən ] (plural al·ler·gens)


noun 
Definition:
 
substance causing allergy: any substance that causes an allergic reaction

al·ler·gen·ic [ àllər jénnik ] adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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