ef|fu|sion

ef|fu|sion «ih FYOO zhuhn», noun.

1. a pouring out, especially of a liquid: »

There was an effusion of blood when he cut his finger. There was an effusion of lava from the erupting volcano.

SYNONYM(S): gush.

2. Figurative. unrestrained expression of feeling in talking or writing: »

Poets whose effusions entranced my soul (Mary Shelley).

3. Medicine. a) the escape of a fluid, such as blood or lymph, from its natural vessel into surrounding tissues or cavities. b) the fluid that escapes.

4. Physics. the movement or flow of gas molecules through a small hole or holes.