Sarcina \Sar*ci"na\, n. [NL., fr. Gr. ? of flesh, fr. sa`rx,
   sa`rkos, flesh.] (Biol.)
   A genus of bacteria found in various organic fluids,
   especially in those those of the stomach, associated with
   certain diseases. The individual organisms undergo division
   along two perpendicular partitions, so that multiplication
   takes place in two directions, giving groups of four cubical
   cells. Also used adjectively; as, a sarcina micrococcus; a
   sarcina group.
   [1913 Webster]

   Sarcina form (Biol.), the tetrad form seen in the division
      of a dumb-bell group of micrococci into four; -- applied
      particularly to bacteria. See micrococcus.
      [1913 Webster]