dome

Etymology

Borrowed from Middle French dome, domme (modern French dôme), from Italian duomo, from Latin domus (ecclesiae) (literally “house (of the church)”), a calque of Ancient Greek οἶκος τῆς ἐκκλησίας (oîkos tês ekklēsías). Doublet of domus.

noun

1. (architecture) A structural element resembling the hollow upper half of a sphere.
   geodesic dome
2. (by extension) Anything shaped like an upset bowl, often used as a cover.
   a cake dome
   lava dome
   The heatwave, caused by what meteorologists described as a dome of high pressure, extends from California up through areas in Canada’s Arctic territories and was worsened by the human-caused climate crisis. 2021-06-29, Gabrielle Canon, “Historic heatwave, extreme drought and wildfires plague North American west”, in The Guardian
3. (informal) A person's head.
   Was he in trouble, half a ton of rubble landed on the top of his dome. 1962, Myles Rudge (lyrics and music), “Right Said Fred”
   Trapping ain't dead, the nitty still clucking and ringing my phone Chilling with bro, talking ’bout money, dough to the dome 2016, “Let’s Lurk”, Monkey (lyrics), performed by 67 ft Giggs
4. (slang) head, oral sex
   I got five Georgia homes where I rest my Georgia bones, Come anywhere on my land and I'll aim at your Georgia dome. 2005, “Georgia”, performed by Ludacris
   Put your mouth on a dick, give me Georgia Dome. 2005, “Georgia Dome”, performed by Ying Yang Twins
5. (obsolete, poetic) A building; a house; an edifice.
   pleasure dome
   Approach the dome, the social banquet share. 1726, Alexander Pope, Odyssey
6. (by extension) Any erection resembling the dome or cupola of a building, such as the upper part of a furnace, the vertical steam chamber on the top of a boiler, etc.
   steam dome
7. (crystallography) A prism formed by planes parallel to a lateral axis which meet above in a horizontal edge, like the roof of a house; also, one of the planes of such a form.
8. (geology) A geological feature consisting of symmetrical anticlines that intersect where each one reaches its apex.

verb

1. (transitive) To give a domed shape to.
   […] the general effect being to dome the cover upward at least 1,000 and probably 2,000 feet, and to metamorphose the limy sediments into hornstones […] 1907, Joseph Barrell, Geology of the Marysville Mining District, Montana, page 24
2. (transitive, colloquial, slang) To shoot in the head.
   That guy just got domed!
3. (transitive, US, African-American Vernacular, colloquial, slang) To perform fellatio on.