emit
verb
1 hydrocarbons are emitted from vehicle exhausts:
discharge, release, give out/off, pour out, send forth, throw out, void, effuse, vent, give vent to, issue;
leak, ooze, shed, excrete, disgorge, secrete, eject;
spout, belch, spew out;
emanate, radiate, exhale, ejaculate, exude;
rare eruct.
▷antonyms absorb.
emit Oxford Dictionary of English