actino- Hear it!

actino- definition

actino·- (ak′tə nō′, ak tin′ə)

  1. of actinism or actinic rays actinometer
  2. Biol. of radiated structure actinomycete

Etymology: < Gr aktis (gen. aktinos), ray

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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