/eks hayl", ek sayl"/ , v. , exhaled, exhaling .
v.i.
1. to emit breath or vapor; breathe out.
2. to pass off as vapor; pass off as an effluence.
v.t.
3. to breathe out; emit (air, vapor, sound, etc.): to exhale a sigh.
4. to give off as vapor: The engine exhaled steam.
5. to draw out as a vapor or effluence; evaporate.
[ 1350-1400; ME exalen exhalare, equiv. to ex- EX- 1 + halare to breathe ]