n. 辛辣(腐蚀性,恶毒)

Acridity \A*crid"i*ty\, Acridness \Ac"rid*ness\n.
The quality of being acrid or pungent; irritant bitterness;
extreme bitterness; acrimony; as, the acridity of a plant, of
a speech.

Syn: acridness

2. having an acrid smell.

Syn: pungency
[WordNet 1.5]