EXPIRING

Adjective

expiring (not comparable)

Ending, terminating, dying.

Verb

expiring

present participle of expire

Source: Wiktionary

Ex*pir"ing, a.

1. Breathing out air from the lungs; emitting fluid or volatile matter; exhaling; breathing the last breath; dying; ending; terminating.

2. Pertaining to, or uttered at, the time of dying; as, expiring words; expiring groans.

EXPIRE

Ex*pire", v. t. [imp. & p. p. Expired;p. pr & vb. n. Expiring.] Etym: [L. expirare, exspirare, expiratum, exspiratum; ex out + spirare to breathe: cf. F. expirer. See Spirit.]

1. To breathe out; to emit from the lungs; to throw out from the mouth or nostrils in the process of respiration; -- opposed to inspire. Anatomy exhibits the lungs in a continual motion of inspiring and expiring air. Harvey. This chafed the boar; his nostrils flames expire. Dryden.

2. To give forth insensibly or gently, as a fluid or vapor; to emit in minute particles; to exhale; as, the earth expires a damp vapor; plants expire odors. The expiring of cold out of the inward parts of the earth in winter. Bacon.

3. To emit; to give out. [Obs.] Dryden.

4. To bring to a close; to terminate. [Obs.] Expire the term Of a despised life. Shak.

Ex*pire", v. i.

1. To emit the breath.

2. To emit the last breath; to breathe out the life; to die; as, to expire calmly; to expire in agony.

3. To come to an end; to cease; to terminate; to perish; to become extinct; as, the flame expired; his lease expires to-day; the month expired on Saturday.

4. To burst forth; to fly out with a blast. [Obs.] "The ponderous ball expires." Dryden.

Source: Webster’s Unabridged Dictionary 1913 Edition