apo-, ap-, aph-

1. The absence of a directed response of a motile organism to water.
2. The directed reaction of a motile organism away from moisture.

1. A cosmic cataclysm in which God destroys the ruling powers of evil based on a prophetic disclosure; a revelation.
2. The last book of the New Testament in the Bible which contains visionary descriptions of heaven and of conflicts between good and evil and of the end of the world; attributed to John the apostle.
3. Any of a number of anonymous Jewish or Christian texts from around the second century B.C. to the second century A.D. containing prophetic or symbolic visions; especially, of the imminent destruction of the world and the salvation of the righteous.
4. A great or total devastation; doom; such as, the apocalypse of nuclear war.
5. Etymology: "revelation, disclosure", from Catholic-Church Latin apocalypsis, "revelation"; from Greek apokalyptein, "to uncover"; from apo-, "from" + kalyptein, "to cover, to conceal".

1. Prophetic of devastation or ultimate doom.
2. Warning about a disastrous future or outcome: "We hear more and more about the apocalyptic warnings of global warming."
3. Involving widespread destruction and devastation.
4. Predicting, or presaging, imminent disaster and total or universal destruction.

Belief in apocalyptic prophecies; especially, regarding the imminent destruction of the world and the foundation of a new world order as a result of the triumph of good over evil.

1. Someone who adheres to the teachings of apocalyptic literature concerning the signs and events preceding the end of the world.
2. Anyone who believes in the teachings that predict a catastrophic end to the world.

A genus of chiefly American perennial herbs of the dogbane family (Apocynaceae) with opposite leaves and small white or pink flowers comprising the dogbanes of which several are the source of substances with physiological activity resembling digitalis.

Dogbanes are perennial herbaceous plants, with poisonous milky juice, bearing slender pods in pairs; said to be poisonous to dogs.

1. The point at which a satellite orbiting an astronomical object is farthest from the center of the object being orbited.
2. The point in the orbit of the moon, or of an artificial satellite, most distant from the center of the earth.
3. The point in an orbit most distant from the body being orbited.
4. The farthest, or highest, point; a culmination.