spread, spread out, to splash or spill

verb, noun classifier:  spread, spread out, to splash or spill
CL5: spread, splash, spill.  Uses an outward radiating moment.

This is generally used in conjunction with liquid, gases, and germs.

Examples:
liquid: 
spilled milk, overflowing bathtub or a huge flood
gas/chemical: 
The chlorine spilled out from the train crash.
germs/infection: 
The infection spread to her lungs.