APNEUMATIC
Ap`neu*mat"ic, a. [Gr. not blown through.] (Med.)
Defn: Devoid of air; free from air; as, an apneumatic lung; also, effected by or with exclusion of air; as, an apneumatic operation.
APNEUMONA
Ap*neu"mo*na, n. pl. Etym: [NL., fr. Gr. (Zoöl.)
Defn: An order of holothurians in which the internal respiratory organs are wanting; — called also Apoda or Apodes.
APNOEA; APNEA
Ap*nae"a, n. Etym: [NL., fr. Gr. (Med.)
Defn: Partial privation or suspension of breath; suffocation.
APO
Ap"o. Etym: [Gr. Ab-.]
Defn: A prefix from a Greek preposition. It usually signifies from, away from, off, or asunder, separate; as, in apocope (a cutting off), apostate, apostle (one sent away), apocarpous.
APOCALYPSE
A*poc"a*lypse, n. Etym: [L. apocalypsis, Gr. apocalypse.]
1. The revelation delivered to St. John, in the isle of Patmos, near the close of the first century, forming the last book of the New Testament.