Larry's Pretty Good Word of the Day (prettygoodword) wrote in 1word1day,
Larry's Pretty Good Word of the Day

Thursday word: parallelepiped

parallelepiped (pah-re-lel-PIE-ped, pah-re-lel-EH-pi-ped) - n., a polyhedron with six faces, each a parallelogram and each being parallel to its opposite face.

Five syllables with the second E silent and stress on the PIE is now the usual pronunciation, but six with stress on the fourth the former way of saying it, as that's closer to the Greek pronunciation of παραλληλεπίπεδον, having parallel plane surfaces -- for while the ancient Greeks may not have had algebra, they did know their geometry, including solid as well as plane figures. The επίπεδον (epipedon) part of it means plane surface, but originally meant level, and before that, level ground, which brings out that geometry literally means "measure of the earth". Note that a cube is a parallelepiped, as a square is just a special case parallelogram. Pictures, equations.

She descended the staircase wearing a crystalline parallelepiped pendant and very little else.

Tags: greek, noun, p

  • Tuesday word: Spurious

    Tuesday, Apr. 6, 2021 Spurious (adjective) spu·ri·ous [spyoor-ee-uhs] adjective 1. not genuine, authentic, or true; not from the claimed,…

  • Tuesday word: Gaumless

    Tuesday, Mar. 16, 2021 Gaumless (adjective) gaum·less [gawm-lis] adjective Chiefly British Informal. lacking in vitality or intelligence;…

  • Sunday Word: Somnolent

    somnolent [ som-n uh-l uhnt] adjective: 1 of a kind likely to induce sleep 2 inclined to or heavy with sleep; drowsy Examples: Despite…

  • Post a new comment


    Comments allowed for members only

    Anonymous comments are disabled in this journal

    default userpic

    Your reply will be screened

    Your IP address will be recorded