'Tank top' definitions:

Definition of 'tank top'

From: WordNet
noun
A tight-fitting sleeveless shirt with wide shoulder straps and low neck and no front opening; often worn over a shirt or blouse

Definition of 'Tank top'

From: GCIDE
  • 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]