di·sul·fide 
(dī-sŭlfīd′)
(dī-sŭlfīd′)n.
A divalent chemical group consisting of two sulfur atoms, or a compound in which it is combined with other elements or groups. Also called bisulfide.
- sympathetic ink
- sympathetic nervous system
- sympathize
- sympathizer
- sympathizingly
- sympatholytic
- sympathomimetic
- sympathy
- sympathy strike
- sympatric
- sympatrically
- sympatry
- sympetalous
- symphonic
- symphonic poem
- symphonious
- symphoniously
- symphonist
- symphony
- symphony orchestra
- symphyseal
- symphysial
- symphysis
- sympodial
- sympodially