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atrioventricular
atrip
atrium
atrocious
atrocity
atrophic
atrophic gastritis
atrophic rhinitis
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atrazine
at·ra·zine [ áttrə zn ]


noun 
Definition:
 
herbicide: a white compound. Use: agricultural herbicide. C8H14N5Cl
[Mid-20th century. < Latin atr- "black" (because it prevents photosynthesis) + triazine]
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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