hy·po·phos·pho·rous acid 
(hī′pō-fŏsfər-əs, -fŏs-fôrəs)
(hī′pō-fŏsfər-əs, -fŏs-fôrəs)n.
A clear, colorless or slightly yellow oily liquid or deliquescent crystalline solid, H3PO2, used as a reducing agent.
- splintery
- split
- Split
- split-brain
- split decision
- split end
- split-fingered fastball
- split hairs
- split infinitive
- split-level
- split one's sides
- split personality
- split rail
- split-rail
- split second
- split shift
- splitsville
- splitter
- split the difference
- split ticket
- splitting
- splog
- splotch
- splotchiness
- splotchy