competent
Definition: (adjective) having the skill and knowledge needed for a particular task; capable
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co·lis·tin
 (k  -l  s  t n, k  -)
KEY
NOUN:
- An antibiotic produced by the bacterium Bacillus polymyxa or B. colistinus that is effective against a wide range of gram-negative bacteria and is used especially in the treatment of infections of the gastrointestinal tract.
ETYMOLOGY:
From New Latin Colist nus, species name, from
coli-
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