precipitant

PRECIP'ITANT, a. [L. proecipitans, proecipito, from proeceps,headlong.]

1. Falling or rushing headlong; rushing down with velocity.

They leave their little lives

Above the clouds,precipitant to earth.

2. Hasty; urged with violent haste.

Should he return, that troop so blithe and bold,

Precipitant in fear, would wing their flight.

3. Rashly hurried or hasty; as precipitant rebellion.

4. Unexpectedly brought on or hastened.

PRECIP'ITANT, n. In chimistry, a liquor, which when poured on a solution, separates what is dissolved and makes it precipitate, or fall to the bottom in a concrete state.