rod

[rod]

noun

verb (used with object), rod·ded, rod·ding.


Origin of rod

before 1150; Middle English rodd, late Old English; akin to Old Norse rudda club
Related formsrod·less, adjectiverod·like, adjective

Rod

[rod]

noun

a male given name, form of Roderick or Rodney.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


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British Dictionary definitions for rod

rod

noun

a slim cylinder of metal, wood, etc; stick or shaft
a switch or bundle of switches used to administer corporal punishment
any of various staffs of insignia or office
power, esp of a tyrannical kinda dictator's iron rod
a straight slender shoot, stem, or cane of a woody plant
Also called: pole, perch
  1. a unit of length equal to 5 1/2 yards
  2. a unit of square measure equal to 30 1/4 square yards
a straight narrow board marked with the dimensions of a piece of joinery, as the spacing of steps on a staircase
a metal shaft that transmits power in axial reciprocating motionpiston rod, con(necting) rod Compare shaft (def. 5)
surveying another name (esp US) for staff 1 (def. 8)
Also called: retinal rod any of the elongated cylindrical cells in the retina of the eye, containing the visual purple (rhodopsin), which are sensitive to dim light but not to colourCompare cone (def. 5)
any rod-shaped bacterium
a slang word for penis
US slang name for pistol (def. 1)
short for hot rod
Derived Formsrodlike, adjective

Word Origin for rod

Old English rodd; related to Old Norse rudda club, Norwegian rudda, rydda twig
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 rod
n.

Old English rodd "a rod, pole," which is probably cognate with Old Norse rudda "club," from Proto-Germanic *rudd- "stick, club," from PIE *reudh- "to clear land."

As a long, tapering elastic pole for fishing, from mid-15c. Figurative sense of "offshoot" (mid-15c.) led to Biblical meaning "scion, tribe." As an instrument of punishment, attested from mid-12c.; also used figuratively for "any sort of correction or punishment," but the basic notion is of beating someone with a stick.

As a unit of measure (5½ yards or 16½ feet, also called perch or pole) first attested mid-15c., from the stick used to measure it off. As a measure of area, "a square perch," from late 15c., the usual measure in brickwork. Meaning "light-sensitive cell in a retina" is from 1866, so-called for its shape. Slang meaning "penis" is recorded from 1902; that of "gun, revolver" is from 1903.

Online Etymology Dictionary, © 2010 Douglas Harper

rod in Medicine

rod

[rŏd]

n.

A straight slender cylindrical formation.
A rod cell.
An elongated bacterium; a bacillus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

rod in Science

rod

[rŏd]

One of the rod-shaped cells in the retina of the eye of many vertebrate animals. Rods are more sensitive to light than cones and are responsible for the ability to see in dim light. However, rods are insensitive to red wavelengths of light and do not contribute greatly to the perception of color. Compare cone.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with rod

rod

see hot rod; spare the rod.

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