tss

exclamation1

1. •
   A hissing sound.

   • When the woman held the sausage over the open fire, the drops of fat went tss-tsss on the coals and the flames turned a lovely blue colour. — 1964

noun3

1. •
   Initialism of toxic shock syndrome.
2. •
   Initialism of total suspended solids: a measure of water quality.
3. •
   Initialism of total sum of squares.