pi´geon|hol´er — pi|geon|hole «PIHJ uhn HOHL», noun, verb, holed, hol|ing. –n. 1. a) a small place built, usually as one of a series, for domestic pigeons to nest in. b) a small hole in a wall for pigeons to pass in and out. 2. one of a set of boxlike… … Useful english dictionary
Black hole electron — In physics, there is a speculative notion that if there were a black hole with the same mass and charge as an electron, it would share many of the properties of the electron including the magnetic moment and Compton wavelength. Problems As a… … Wikipedia
Pigeon hole — Pigeon Pi geon, n. [F., fr. L. pipio a young pipping or chirping bird, fr. pipire to peep, chirp. Cf. {Peep} to chirp.] 1. (Zo[ o]l.) Any bird of the order Columb[ae], of which numerous species occur in nearly all parts of the world. [1913… … The Collaborative International Dictionary of English
pigeonhole — pi|geon|hole1 [ pıdʒən,houl ] noun count 1. ) one of the sections of an open structure in a desk or on a wall where you can put papers, letters, messages, etc. 2. ) one of the small holes in a structure for PIGEONS to live in put… … Usage of the words and phrases in modern English
pigeonhole — pi•geon•hole [[t]ˈpɪdʒ ənˌhoʊl[/t]] n. v. holed, hol•ing 1) one of a series of small, open compartments in a desk, cabinet, or the like, used for filing papers, letters, etc 2) a hole or recess, or one of a series of recesses, for pigeons to nest … From formal English to slang
Pigeonhole — Pi geon*hole , v. t. To place in the pigeonhole of a case or cabinet; hence, to put away; to lay aside indefinitely; as, to pigeonhole a letter or a report. [1913 Webster] … The Collaborative International Dictionary of English
Pigeonhole — Pi geon*hole , n. A small compartment in a desk or case for the keeping of letters, documents, etc.; so called from the resemblance of a row of them to the compartments in a dovecote. Burke. [1913 Webster] … The Collaborative International Dictionary of English
pigeonhole — ▪ I. pigeonhole pi‧geon‧hole 1 [ˈpɪdʒnhəʊl ǁ hoʊl] verb [transitive] to consider a person, activity etc as belonging to a particular type or group, in a way that is too simple and therefore unfair; = LABEL: • Electronic books and multimedia had… … Financial and business terms
Ring singularity — In general relativity the gravitational singularity at the center of a rotating black hole (a Kerr black hole ) is supposed to form a circle rather than a point. This is often referred to as a ring singularity.Description of a ring… … Wikipedia
Contributors to general relativity — General relativity Introduction Mathematical formulation Resources Fundamental concepts … Wikipedia
