a small piece of material used to mend a tear or break, to cover a hole, or to strengthen a weak place:
patches at the elbows of a sports jacket.
a piece of material used to cover or protect a wound, an injured part, etc.:
a patch over the eye.
Also called skin patch, transdermal patch. an adhesive patch that applies to the skin and gradually delivers drugs or medication to the user:
using a nicotine patch to try to quit smoking.
any of the pieces of cloth sewed together to form .
a small piece, scrap, or area of anything:
a patch of ice on the road.
a piece or tract of land; plot.
a small field, plot, or garden, especially one in which a specific type of plant grows or is cultivated:
a cabbage patch; a bean patch.
Military. a cloth emblem worn on the upper uniform sleeve to identify the military unit of the wearer.
a small organizational or affiliational emblem of cloth sewn to one’s jacket, shirt, cap, etc.
a connection or hookup, as between radio circuits or telephone lines:
The patch allowed shut-ins to hear the game by telephone.
a period of time characterized by some quality:
he was going through a rough patch.
Computers. a small piece of code designed to be inserted into an executable program in order to fix errors in, or update the program or its supporting data.
verb (used with object)
to mend, cover, or strengthen with or as if with a patch or patches.
to repair or restore, especially in a hasty or makeshift way (usually followed by up).
to make by joining patches or pieces together:
to patch a quilt.
to settle or smooth over (a quarrel, difference, etc.) (often followed by up):
They patched up their quarrel before the company arrived.
(especially in radio and telephone communications) to connect or hook up (circuits, programs, conversations, etc.) (often followed by through, into, etc.):
The radio show was patched through to the ship. Patch me through to the mainland.
verb (used without object)
to make a connection between radio circuits, telephone lines, etc. (often followed by in or into):
We patched into the ship-to-shore conversation.
a clown, fool, or booby.
[muh-kar-uh l] /məˈkær əl/ (Show IPA), 1889–1945, U.S. World War II general.
a small piece, area, expanse, etc
a district for which particular officials, such as social workers or policemen, have responsibility: he’s a problem that’s on your patch, John
(pathol) any discoloured area on the skin, mucous membranes, etc, usually being one sign of a specific disorder
an imitation beauty spot, esp one made of black or coloured silk, worn by both sexes, esp in the 18th century
(US) Also called flash. an identifying piece of fabric worn on the shoulder of a uniform, on a vehicle, etc
a small contrasting section or stretch: a patch of cloud in the blue sky
a scrap; remnant
(computing) a small set of instructions to correct or improve a computer program
(Austral, informal) the insignia of a motorcycle club or gang
a bad patch, a difficult or troubled time
(informal) not a patch on, not nearly as good as
to mend or supply (a garment, etc) with a patch or patches
to put together or produce with patches
(of material) to serve as a patch to
(often foll by up) to mend hurriedly or in a makeshift way
(often foll by up) to make (up) or settle (a quarrel)
to connect (electric circuits) together temporarily by means of a patch board
(usually foll by through) to connect (a telephone call) by means of a patch board
(computing) to correct or improve (a program) by adding a small set of instructions
“piece of cloth used to mend another material,” late 14c., of obscure origin, perhaps a variant of pece, pieche, from Old North French pieche (see piece (n.)), or from an unrecorded Old English word (but Old English had claðflyhte “a patch”). Phrase not a patch on “nowhere near as good as” is from 1860.
“fool, clown,” 1540s, perhaps from Italian pazzo “fool,” of unknown origin. Possibly from Old High German barzjan “to rave” [Klein]. But Buck says pazzo is originally euphemistic, and from Latin patiens “suffering,” in medical use, “the patient.” Form perhaps influenced by folk etymology derivation from patch (n.1), on notion of a fool’s patched garb.
mid-15c., from patch (n.1). Electronics sense of “to connect temporarily” is attested from 1923. Related: Patched; patching.
1. A temporary addition to a piece of code, usually as a quick-and-dirty remedy to an existing bug or misfeature. A patch may or may not work, and may or may not eventually be incorporated permanently into the program. Distinguished from a diff or mod by the fact that a patch is generated by more primitive means than the rest of the program; the classical examples are instructions modified by using the front panel switches, and changes made directly to the binary executable of a program originally written in an HLL. Compare one-line fix.
2. To insert a patch into a piece of code.
3. [in the Unix world] A diff.
4. A set of modifications to binaries to be applied by a patching program. IBM systems often receive updates to the operating system in the form of absolute hexadecimal patches. If you have modified your OS, you have to disassemble these back to the source code. The patches might later be corrected by other patches on top of them (patches were said to “grow scar tissue”). The result was often a convoluted patch space and headaches galore.
There is a classic story of a tiger team penetrating a secure military computer that illustrates the danger inherent in binary patches (or, indeed, any patches that you can’t – or don’t – inspect and examine before installing). They couldn’t find any trap doors or any way to penetrate security of IBM’s OS, so they made a site visit to an IBM office (remember, these were official military types who were purportedly on official business), swiped some IBM stationery, and created a fake patch. The patch was actually the trapdoor they needed. The patch was distributed at about the right time for an IBM patch, had official stationery and all accompanying documentation, and was dutifully installed. The installation manager very shortly thereafter learned something about proper procedures.
5. Larry Wall’s “patch” utility program, which automatically applies a patch to a set of source code or other text files. Patch accepts input in any of the four forms output by the Unix diff utility. When the files being patched are not identical to those on which the diffs were based, patch uses heuristics to determine how to proceed.
Diff and patch are the standard way of producing and applying updates under Unix. Both have been ported to other operating systems.
Patch Home (http://gnu.org/software/patch/patch.html).
planned approach to community health
- Patch board
noun 1. a device with a large number of sockets into which electrical plugs can be inserted to form many different temporary circuits: used in telephone exchanges, computer systems, etc Also called plugboard
noun, Telephony, Electronics. 1. a short cord with a plug at each end, or a plug at one end and a pair of clips at the other, used for temporarily connecting two pieces of equipment or signal paths.
[pach-uh n] /ˈpætʃ ən/ noun 1. Kenneth, 1911–72, U.S. poet and novelist.
[pach-ee] /ˈpætʃ i/ adjective, patchier, patchiest. 1. characterized by or made up of . 2. occurring in, forming, or like . 3. of inconsistent or irregular quality, texture, etc.; not uniform: patchy acting; patchy areas of fog. /ˈpætʃɪ/ adjective patchier, patchiest 1. irregular in quality, occurrence, intensity, etc: a patchy essay 2. having or forming […]