rounding

[ roun-ding ]
/ ˈraʊn dɪŋ /

adjective

round or nearly round.
of, relating to, or used for making something round.
turning, curving, or circling around.
pertaining to the mathematical process of rounding: a rounding error.

noun

the act or process of making something round.
Mathematics.
  1. the process of replacing a number by another number of approximately the same value but having fewer digits: To the nearest dollar, the rounding of $27.68 yields $28.
  2. a similar process that specifies one of various rules. Generally, the number is first truncated to one or two digits more than is desired; then the last one or two digits are adjusted in a specified way in order to reflect the magnitude of the original number. In rounding the final digits, 0–4 are simply dropped, 6–9 are dropped after the preceding digit is increased by 1, and 5 is handled in various ways depending on the surrounding digits and the particular convention being followed.Compare truncate(def 2).

Origin of rounding

First recorded in 1545–55; round1 + -ing2, -ing1

Definition for rounding (2 of 3)

Origin of round

1
1250–1300; (adj.) Middle English rond, round < Old French, stem of ront, earlier reont < Latin rotundus round, circular (see rotund); (noun) Middle English, partly derivative of the adj., partly < Old French rond, ronde (derivative of ront); (v.) Middle English, derivative of the adj.; (adv. and preposition) Middle English, apparently aphetic variant of around

Related forms

round·ness, noun

Definition for rounding (3 of 3)

round

2
[ round ]
/ raʊnd /

verb (used with or without object) Archaic.

to whisper.

Origin of round

2
before 1000; Middle English rounen, Old English rūnian, derivative of rūn a secret, rune1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rounding

British Dictionary definitions for rounding (1 of 2)

rounding

/ (ˈraʊndɪŋ) /

noun

computing a process in which a number is approximated as the closest number that can be expressed using the number of bits or digits available

British Dictionary definitions for rounding (2 of 2)

Derived Forms

roundness, noun

Word Origin for round

C13: from Old French ront, from Latin rotundus round, from rota a wheel

xref

See around
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

Culture definitions for rounding

round


A song that can be begun at different times by different singers, but with harmonious singing (see harmony) as the result. “Row, Row, Row Your Boat” is a round.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with rounding

round


In addition to the idioms beginning with round

  • round and round
  • round figures
  • round off
  • round on
  • round out
  • round peg in a square hole
  • round robin
  • round the bend
  • round trip
  • round up

also see:

  • all year round
  • bring around (round)
  • come around (round)
  • get around (round)
  • in round numbers
  • in the round
  • make the rounds
  • other way round
  • pull round
  • rally around

Also see underaround.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.