di·ol 
(dīôl, -ŏl)
(dīôl, -ŏl)n.
An alcohol, such as ethylene glycol or catechol, containing two hydroxy groups per molecule.
- supposititiously
- suppositive
- suppositively
- suppository
- suppress
- suppressant
- suppressible
- suppression
- suppressive
- suppressor
- suppurate
- suppuration
- suppurative
- supra-
- supracellular
- supragenic
- supraglottal
- supraliminal
- supralittoral
- supramaxilla
- supramaxillary
- supramolecular
- supranational
- supraorbital
- suprarenal