Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A strain of bacteria that has become resistant to most antibiotics.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun colloquial A strain of bacteria that has become resistant to many antibiotics.
  • noun US An insect, Bemisia tabaci, that is a serious pest.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a strain of pest accidentally imported into Florida from the Middle East then spread to California where it is a very serious pest feeding on almost all vegetable crops and poinsettias
  • noun a strain of bacteria that is resistant to all antibiotics

Etymologies

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