tank top

from WordNet (r) 3.0 (2006)

tank top
    n 1: a tight-fitting sleeveless shirt with wide shoulder straps
         and low neck and no front opening; often worn over a shirt
         or blouse

from The Collaborative International Dictionary of English v.0.48

Tank top \Tank" top`\, n.
   a sleeveless and collarless shirt with wide shoulder straps
   and no front opening, often close-fitting and low-cut.
   [PJC]

[email protected]