close-open operations
1Open mail relay — Mail relay diagram An open mail relay is an SMTP server configured in such a way that it allows anyone on the Internet to send e mail through it, not just mail destined to or originating from known users.[1][2] …
2close — close1 [klōs] adj. closer, closest [ME clos < OFr < L clausus, pp. of claudere (see CLOSE2); senses under II from notion “with spaces or intervals closed up”] I denoting the fact or state of being closed or confined 1. shut; not open 2.… …
3Open (system call) — For most file systems, a program initializes access to a file in a filesystem using the open system call. This allocates resources associated to the file (the file descriptor), and returns a handle that the process will use to refer to that file …
4Close air support — A Boeing AH 64 Apache attack helicopter provides close air support to United States Army soldiers patrolling the Tigris River southeast of Baghdad, Iraq during the Iraq War In military tactics, close air support (CAS) is defined as air action by… …
5close — I (New American Roget s College Thesaurus) adj. compact, dense, firm; stifling, oppressive, muggy, stale, stuffy; stingy, tight fisted, niggardly; taut; confining, constrictive; near, intimate; secretive, reticent, reserved; approximate. See… …
6close — closable, closeable /kloh zeuh beuhl/, adj. closely /klohs lee/, adv. closeness /klohs nis/, n. v. /klohz/; adj., adv. /klohs/ or, for 56, /klohz/; n. /klohz/ for 66, 67, 70 72, 74, 75, /klohs/ for 68, 69, 73, v., closed …
7Operations research — For the academic journal, see Operations Research: A Journal of the Institute for Operations Research and the Management Sciences. Operations research (also referred to as decision science, or management science) is an interdisciplinary… …
8operations research — the analysis, usually involving mathematical treatment, of a process, problem, or operation to determine its purpose and effectiveness and to gain maximum efficiency. [1940 45, Amer.] * * * Application of scientific methods to management and… …
9open — [[t]o͟ʊpən[/t]] ♦ opens, opening, opened 1) V ERG If you open something such as a door, window, or lid, or if it opens, its position is changed so that it no longer covers a hole or gap. [V n] He opened the window and looked out... The church… …
10Open market — The term open market is used generally to refer to a situation close to free trade and in a more specific technical sense to interbank trade in securities. Use of the term in economic theory In a general sense used in economics and political… …
