ETYM Latin perfusio.
Pumping a liquid into an organ or tissue (especially by way of blood vessels).

1. To cause (a liquid) to spatter about, esp. with force; SYN. splash, splosh.
2. To rain gently; SYN. spit, spatter, patter, pitter-patter.
3. To scatter with liquid; wet lightly; SYN. besprinkle.