hollow+cylinder
41Barrel of the ear — Barrel Bar rel (b[a^]r r[e^]l), n.[OE. barel, F. baril, prob. fr. barre bar. Cf. {Barricade}.] 1. A round vessel or cask, of greater length than breadth, and bulging in the middle, made of staves bound with hoops, and having flat ends or heads;… …
42Barrel organ — Barrel Bar rel (b[a^]r r[e^]l), n.[OE. barel, F. baril, prob. fr. barre bar. Cf. {Barricade}.] 1. A round vessel or cask, of greater length than breadth, and bulging in the middle, made of staves bound with hoops, and having flat ends or heads;… …
43Barrel vault — Barrel Bar rel (b[a^]r r[e^]l), n.[OE. barel, F. baril, prob. fr. barre bar. Cf. {Barricade}.] 1. A round vessel or cask, of greater length than breadth, and bulging in the middle, made of staves bound with hoops, and having flat ends or heads;… …
44Capacitance — Electromagnetism Electricity · …
45cholla — /chohl yah, yeuh/; Sp. /chaw yah/, n., pl. chollas /chohl yahz, yeuhz/; Sp. /chaw yahs/. any of several spiny treelike cacti belonging to the genus Opuntia, esp. O. fulgida of the southwestern U.S. and Mexico, having knobby outgrowths and yellow… …
46pencil drawing — Drawing executed with a pencil, an instrument made of graphite enclosed in a wood casing. Though graphite was mined in the 16th century, its use by artists is not known before the 17th century. In the 17th–18th century, graphite was used… …
47tube — n. channel within a body 1) bronchial; Eustachian; Fallopian tubes rubber casing 2) an inner tube hollow cylinder 3) an electron; picture, television; test tube 4) a vacuum tube (AE; BE has valve) 5) (slang) the boob tube ( television ) * * *… …
48drum — 1. n. & v. n. 1 a a percussion instrument or toy made of a hollow cylinder or hemisphere covered at one or both ends with stretched skin or parchment and sounded by striking (bass drum; kettledrum). b (often in pl.) a drummer or a percussion… …
49Cryptex — Replica cryptex: prize from Google Da Vinci Code Quest Contest The word cryptex is a neologism coined by the author Dan Brown for his 2003 novel The Da Vinci Code, denoting a portable vault used to hide secret messages. It is a combi …
50Edward Wright (mathematician) — For the 20th century mathematician, see Edward Maitland Wright. Edward Wright Title page of the first edition of Wright s Certaine Errors in Navigation (1599) …
