trapdoor (plural trapdoors)
A hinged or sliding door set into a floor or ceiling.
(theater) Such a trap set into the floor of a stage to allow fast exits and entrances.
(computing) A secret method of obtaining access to a program or online system; a backdoor.
(mathematics, cryptography) The special information that permits the inverse of a trapdoor function to be easily computed.
(mining) A door in a level for regulating the ventilating current; weather door.
• drop
Source: Wiktionary
Trap"door`, n.
1. (Arch.)
Definition: A lifting or sliding door covering an opening in a roof or floor.
2. (Mining)
Definition: A door in a level for regulating the ventilating current; -- called also weather door. Raymond. Trapdoor spider (Zoöl.), any one of several species of large spiders which make a nest consisting of a vertical hole in the earth, lined with a hinged lid, like a trapdoor. Most of the species belong to the genus Cteniza, as the California species (C. Californica).
Source: Webster’s Unabridged Dictionary 1913 Edition
10 April 2025
(adjective) capable of being extinguished or killed; “an extinguishable fire”; “hope too is extinguishable”
The Boston Tea Party helped popularize coffee in America. The hefty tea tax imposed on the colonies in 1773 resulted in America switching from tea to coffee. In the lead up to the Revolutionary War, it became patriotic to sip java instead of tea. The Civil War made the drink more pervasive. Coffee helped energize tired troops, and drinking it became an expression of freedom.
