loop

1
[loop]
|

noun

verb (used with object)

verb (used without object)


Idioms

    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 loop

1
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 in the loop

loop

1

noun

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
electronics
  1. a closed electric or magnetic circuit through which a signal can circulate
  2. 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
anatomy
  1. the most common basic pattern of the human fingerprint, formed by several sharply rising U-shaped ridgesCompare arch 1 (def. 4b), whorl (def. 3)
  2. a bend in a tubular structure, such as the U-shaped curve in a kidney tubule (Henle's loop or loop of Henle)
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)

verb

(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

loop

2

noun

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

Word Origin and History for in the loop

loop

n.

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.

loop

v.

"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]
Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for in the loop

loop

[lōōp]

n.

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 in the loop

in the loop

Provided with information and included in a decision-making process. For example, She's new to the board, but be sure to keep her in the loop. This expression uses loop in the sense of “a circle of individuals among whom information or responsibility circulates.” The antonym out of the loop, meaning “left out of such a circle,” dates from the same period. For example, The chairman was consistently leaving Chris out of the loop. [1970s]

loop

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.