a portion of a cord, ribbon, etc., folded or doubled upon itself so as to leave an opening between the parts.
anything shaped more or less like a loop, as a line drawn on paper, a part of a letter, a part of a path, or a line of motion.
a curved piece or a ring of metal, wood, or the like, used for the insertion of something, as a handle, etc.
Aeronautics. a maneuver executed by an airplane in such a manner that the airplane describes a closed curve in a vertical plane.
a circular area at the end of a trolley line, railroad line, etc., where cars turn around.
an arm of a cloverleaf where traffic may turn off or onto a main road or highway.
Physics. the part of a vibrating string, column of air or other medium, etc., between two adjacent nodes.
Electricity. a closed electric or magnetic circuit.
Computers. the reiteration of a set of instructions in a routine or program.
a wire, usually of platinum, one end of which is curved to form a loop, used for transferring microorganisms from one medium to another.
a sand bar that encloses or nearly encloses a body of water.
Figure Skating. a school figure in which a skater traces a large half circle, a small oval within its arc, and another large half circle to complete the figure while remaining on the same skating edge.
the Loop, the main business district of Chicago.
verb (used with object)
to form into a loop.
to make a loop in.
to enfold or encircle in or with something arranged in a loop.
to fasten by forming into a loop, or by means of something formed into a loop (often followed by up):
to loop up the new draperies.
to cause (a missile or projectile) to trace a looping or looplike trajectory through the air:
to loop a grenade into the building.
to fly (an airplane) in a loop or series of loops.
to construct a closed electric or magnetic circuit.
Movies. to complete by means of looping:
We still have to loop the final scenes.
verb (used without object)
to make or form a loop:
The river loops around the two counties.
to move by forming loops, as a measuringworm.
to trace a looping or looplike path through the air:
The fly ball looped high in the air.
to perform a loop or series of loops in an airplane.
Movies. to record dialogue, sound effects, etc., onto an existing film track or soundtrack.
in / out of the loop, included in or excluded from a group of people who receive the latest information about something:
She’s often out of the loop on policy decisions.
throw / knock for a loop, to astonish or upset:
Her quitting the project really threw me for a loop.
a small or narrow opening, as in a wall; .
a hot bloom of pasty consistency, to be worked under a hammer or in rolls.
the round or oval shape formed by a line, string, etc, that curves around to cross itself
any round or oval-shaped thing that is closed or nearly closed
a piece of material, such as string, curved round and fastened to form a ring or handle for carrying by
an intrauterine contraceptive device in the shape of a loop
a flight manoeuvre in which an aircraft flies one complete circle in the vertical plane
(mainly Brit) Also called loop line. a railway branch line which leaves the main line and rejoins it after a short distance
(maths, physics) a closed curve on a graph: hysteresis loop
another name for antinode
(computing) a series of instructions in a program, performed repeatedly until some specified condition is satisfied
(skating) a jump in which the skater takes off from a back outside edge, makes one, two, or three turns in the air, and lands on the same back outside edge
a group of people to whom information is circulated (esp in the phrases in or out of the loop)
(transitive) to make a loop in or of (a line, string, etc)
(transitive) to fasten or encircle with a loop or something like a loop
Also loop the loop. to cause (an aircraft) to perform a loop or (of an aircraft) to perform a loop
(intransitive) to move in loops or in a path like a loop
an archaic word for loophole
late 14c., “loop of cloth, rope, leather, etc.,” probably of Celtic origin (cf. Gaelic lub “bend,” Irish lubiam), influenced by or blended with Old Norse hlaup “a leap, run” (see leap (v.)). In reference to magnetic recording tape or film, first recorded 1931. Computer programming sense first attested 1947.
“to form a loop,” c.1400, “draw (a leash through a ring),” from loop (n.). Related: Looped; looping. Slang looped “drunk” is from 1934. Loop the loop (1900) originally was in reference to roller-coasters at amusement parks.
“Loop-the-Loop” is the name of a new entertainment which goes further in the way of tempting Providence than anything yet invented. The “Loop” is an immense circle of track in the air. A car on a mimic railway shoots down a very steep incline, and is impelled around the inner side of this loop. … The authorities at Coney Island are said to have prohibited “looping-the-loop” because women break their corset strings in their efforts to catch their breath as they sweep down the incline, and moreover, a young man is reported to have ruptured a blood vessel in his liver. [“Philadelphia Medical Journal,” Aug. 10, 1901]
A curve or bend in a cord or other cylindrical body, forming an oval or circular ring.
in the loop, knock someone for a loop, out of the loop, throw someone for a loop
A sequence of instructions that the processor repeats, either until some condition is met, or indefinitely.
In an structured language (e.g. C, Pascal, BASIC, or Fortran), a loop is usually achieved with for loop, while loop or repeat loop constructs.
In other languages these constructs may be synthesised with a jump (assembly language) or a GOTO (early Fortran or BASIC).
a knotted “eye” of cord, corresponding to the “taches” or knobs in the edges of the curtains of the tabernacle, for joining them into a continuous circuit, fifty to a curtain (Ex. 26:4, 5, 10, 11).
- Loop aerial
noun 1. an aerial that consists of one or more coils of wire wound on a frame. Maximum radiation or reception is in the plane of the loop, the minimum occurring at right angles to it Sometimes shortened to loop Also called frame aerial
noun 1. . [boh] /boʊ/ noun 1. a chair back formed of a single length of wood bent into a horseshoe form and fitted to a seat or arm rail, with spindles or slats as a filling.
- Loop combination
A program transformation where the bodies of two loops are merged into one thus reducing the overhead of manipulating and testing the control variable and branching. Further optimisation of the merged code may then become possible. In horizontal loop combination the bodies of the loops are largely independent so only the loop overhead is saved. […]
- Loop diuretic
noun 1. (med) any of a group of diuretics, including frusemide, that act by inhibiting resorption of salts from Henle’s loop of the kidney tubule loop diuretic n. A class of diuretic agents that act by inhibiting reabsorption of sodium and chloride.