hollow+cylinder
61Bass drum — Drum Drum, n. [Cf. D. trom, trommel, LG. trumme, G. trommel, Dan. tromme, Sw. trumma, OHG. trumba a trumpet, Icel. pruma a clap of thunder, and as a verb, to thunder, Dan. drum a booming sound, drumme to boom; prob. partly at least of imitative… …
62Capillary tube — Tube Tube, n. [L. tubus; akin to tuba a trumpet: cf F. tube.] 1. A hollow cylinder, of any material, used for the conveyance of fluids, and for various other purposes; a pipe. [1913 Webster] 2. A telescope. Glazed optic tube. Milton. [1913… …
63Conical refraction — Refraction Re*frac tion (r?*fr?k sh?n), n. [F. r[ e]fraction.] 1. The act of refracting, or the state of being refracted. [1913 Webster] 2. The change in the direction of ray of light, heat, or the like, when it enters obliquely a medium of a… …
64declination — Refraction Re*frac tion (r?*fr?k sh?n), n. [F. r[ e]fraction.] 1. The act of refracting, or the state of being refracted. [1913 Webster] 2. The change in the direction of ray of light, heat, or the like, when it enters obliquely a medium of a… …
65Differential refraction — Refraction Re*frac tion (r?*fr?k sh?n), n. [F. r[ e]fraction.] 1. The act of refracting, or the state of being refracted. [1913 Webster] 2. The change in the direction of ray of light, heat, or the like, when it enters obliquely a medium of a… …
66Double drum — Drum Drum, n. [Cf. D. trom, trommel, LG. trumme, G. trommel, Dan. tromme, Sw. trumma, OHG. trumba a trumpet, Icel. pruma a clap of thunder, and as a verb, to thunder, Dan. drum a booming sound, drumme to boom; prob. partly at least of imitative… …
67Double refraction — Refraction Re*frac tion (r?*fr?k sh?n), n. [F. r[ e]fraction.] 1. The act of refracting, or the state of being refracted. [1913 Webster] 2. The change in the direction of ray of light, heat, or the like, when it enters obliquely a medium of a… …
68Drum — Drum, n. [Cf. D. trom, trommel, LG. trumme, G. trommel, Dan. tromme, Sw. trumma, OHG. trumba a trumpet, Icel. pruma a clap of thunder, and as a verb, to thunder, Dan. drum a booming sound, drumme to boom; prob. partly at least of imitative… …
69Escapement — Es*cape ment, n. [Cf. F. [ e]chappement. See {Escape}.] 1. The act of escaping; escape. [R.] [1913 Webster] 2. Way of escape; vent. [R.] [1913 Webster] An escapement for youthful high spirits. G. Eliot. [1913 Webster] 3. The contrivance in a… …
70Fire tube — Tube Tube, n. [L. tubus; akin to tuba a trumpet: cf F. tube.] 1. A hollow cylinder, of any material, used for the conveyance of fluids, and for various other purposes; a pipe. [1913 Webster] 2. A telescope. Glazed optic tube. Milton. [1913… …
