calypto-, calypt-

(Greek: covered, cover; hide, hidden; conceal, concealed)

apocalypse (s) (noun), apocalypses (pl)
1. A catastrophic event; such as, the end of the world: An apocalypse is a relatively recent development in its meaning because originally it was an alternative name for the book of the Bible known as the 'Revelation of St. John'.

The term apocalypse is also defined as a cosmic cataclysm in which God destroys the ruling powers of evil which is based on a prophetic disclosure or 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 apokalupsis, a derivative of the verb apokalyptein, "to uncover"; from apo-, "away, off" + kalyptein, "to cover, to conceal".

apocalypst (s) (noun), apocalypsts (pl)
A writer or interpreter of apocalypses.
apocalyptic (adjective), more apocalyptic, most apocalyptic
1. A reference to a prophetic of devastation or ultimate doom.
2. Relating to a warning about a disastrous future or outcome: We hear more and more about the apocalyptic results of global warming."
3. A description of a widespread destruction and devastation.
4. A reference to the predicting of, or presaging of, an imminent disaster and total or universal destruction: Apocalyptic teachings or writings; or specifically, apocalyptic literature.
5. Etymology: derived from Greek apokalupto, "to uncover", and so figuratively "to disclose, to reveal".
apocalyptic literature (s) (noun), apocalyptic literatures (pl)
A class of Jewish and Christian writings beginning about 250 B.C. and continuing into the opening centuries of A.D.: The purpose of apocalyptic literature was to comfort the faithful in their suffering conditions, and reconcile those conditions with God's righteousness by prefiguring the future triumph of Israel or the Messianic kingdom.

The best-known Christian apocalyptic literature is the Book of Revelation in the New Testament of the Bible.

apocalyptic number (s) (noun) (no plural form)
The number 666, applied to the Beast in the book of Revelation, chapter 13, verse 18 of the New Testament of the Bible: Examples of apocalyptic numbers are shown in the following quotes: "Here is wisdom. Let him that hath understanding count the number of the beast: for it is the number of a man; and his number is Six hundred threescore and six."
Authorized King James Version of the Holy Bible, 1611.

"This calls for wisdom: let him who has understanding reckon the number of the beast, for it is a human number, its number is six hundred sixty-six."

The Holy Bible, Revised Standard Version, 1953.
apocalyptical (adjectice), more apocalyptical, most apocalyptical
Of or pertaining to a revelation, or, specifically; to "The Revelation of St. John, the Apostle": Apocalyptical writings refer to prophetic revelations.
apocalypticism (s) (noun), apocalypticisms (pl)
1. A belief in certain 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.
2. The expectation of cataclysmic revelation, as in millenarianism which is a belief in the millennium of Christian prophecy [Revelation 20 in the New Testament of the Bible], the 1,000 years when Christ is predicted to reign on earth: An apocalypticism is any religious movement that foresees a coming age of peace and prosperity.

Apocalypticisms involve the practice of, or the addiction to, interpreting or applying prophetic revelations.

apocalyptist (s) (noun), apocalyptists (pl)
1. Someone who adheres to or believes in the teachings in literature concerning the signs and events preceding the end of the world.
2. Anyone who believes in the teachings that predict a catastrophic end of the world.
1. In Greek mythology, a nymph who kept Odysseus on her island for seven years.
2. A small irregularly-shaped natural satellite of Saturn, discovered in 1980.
3. A type of music that originated in the West Indies, notably in Trinidad, and is characterized by improvised lyrics on topical or broadly humorous subjects (origin unknown).
4. Etymology: sea nymph in the Odyssey, literally, "hidden, hider" (originally a death goddess) from Greek kalyptein, "to cover, to conceal".
Hydroids (an invertebrate sea animal) in which a gonophore is enclosed in a gonotheca.
With gills not visible from the outside.
The "covered crocodile" named for the armor covering its back. From Late Triassic North America. Named by Long and Ballew in 1985.
calyptra (s) (noun), calyptrae (pl)
1. The hood or cap covering the calyx of certain plants; such as, the California poppy.
2. The protective cap or hood covering the spore case of a moss or related plant.
3. A similar hoodlike, lidlike, or caplike structure; such as, a root cap.
4. Etymology: via Medieval Latin, from Greek kaluptra, "veil"; from kaluptein, "to cover".
calyptrogen (s) (noun), calyptrogens (pl)
1. The specialized cell layer from which a root cap is formed for the growing-point of a root: The calyptrogens appear in grasses and several other plants.
2. Etymology: from Greek kalyptra, "covering for the head, veil"; from kalyptein, "to conceal, to cover" + gen, "to be born, to become".
eucalyptol (s) (noun), eucalyptols (pl)
A colorless oily liquid from eucalyptus plants: Eucalyptol is used in pharmaceuticals, perfumes, and food flavorings.