[ loop ]
/ lup /
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.
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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.
Origin of loop1
1350–1400; Middle English loupe loop of cloth, perhaps < Scots Gaelic lub loop, bend
Can be confusedloop loupe
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for throw for a loop (1 of 2)
/ (luːp) /
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 closed electric or magnetic circuit through which a signal can circulate
- short for loop aerial
a flight manoeuvre in which an aircraft flies one complete circle in the vertical plane
Also called: loop line mainly British a railway branch line which leaves the main line and rejoins it after a short distance
maths physics a closed curve on a graphhysteresis 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)
(tr) to make a loop in or of (a line, string, etc)
(tr) 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
(intr) to move in loops or in a path like a loop
Word Origin for loop
C14: loupe, origin unknown
British Dictionary definitions for throw for a loop (2 of 2)
/ (luːp) /
an archaic word for loophole
Word Origin for loop
C14: perhaps related to Middle Dutch lupen to watch, peer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medicine definitions for throw for a loop
[ lōōp ]
A curve or bend in a cord or other cylindrical body, forming an oval or circular ring.
A type of loop-shaped intrauterine device.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Idioms and Phrases with throw for a loop (1 of 2)
throw for a loop
see knock for a loop.
Idioms and Phrases with throw for a loop (2 of 2)
see in the loop; knock for a loop.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.