1. 
[syn: streptococcus, streptococci, strep]
The Collaborative International Dictionary of English v.0.48:
Streptococcus \Strep`to*coc"cus\, n.; pl. Streptococci. [NL.,
   fr. Gr. ? pliant, curved + ? a grain, seed.] (Biol.)
   A long or short chain of micrococci, more or less curved.
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WordNet (r) 3.0 (2006):
streptococci
    n 1: spherical Gram-positive bacteria occurring in pairs or
         chains; cause e.g. scarlet fever and tonsillitis [syn:
         streptococcus, streptococci, strep]