Idioms

Origin of iron

before 900; Middle English, Old English īren (noun and adj.), perhaps < *īsren, metathesized from īsern, variant of īsen; compare Old Saxon, Old High German, Old Norse īsarn, Gothic eisarn < Germanic *īsarnam, perhaps < Celtic; compare Gaulish Ysarno-, Iserno- (in place names), Old Breton hoiarn, Welsh haearn, Old Irish íarn
Related formsi·ron·less, adjectivei·ron·like, adjectiveun·i·roned, adjectivewell-i·roned, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for pump iron (1 of 2)

pump iron


verb

(intr) slang to exercise with weights; do body-building exercises

British Dictionary definitions for pump iron (2 of 2)

iron

/ (ˈaɪən) /

noun

adjective

verb

See also iron out, irons
Derived Formsironer, nounironless, adjectiveironlike, adjective

Word Origin for iron

Old English irēn; related to Old High German īsan, Old Norse jārn; compare Old Irish īarn
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 pump iron

iron

[ īərn ]

n.

A lustrous, malleable, ductile, magnetic or magnetizable metallic element. Atomic number 26.
A dietary supplement or medication containing an iron salt, such as ferrous sulfate.

adj.

Made of or containing iron.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for pump iron

iron

[ īərn ]

Fe

A silvery-white, hard metallic element that occurs abundantly in minerals such as hematite, magnetite, pyrite, and ilmenite. It is malleable and ductile, can be magnetized, and rusts readily in moist air. It is used to make steel and other alloys important in construction and manufacturing. Iron is a component of hemoglobin, which allows red blood cells to carry oxygen and carbon dioxide through the body. Atomic number 26; atomic weight 55.845; melting point 1,535°C; boiling point 2,750°C; specific gravity 7.874 (at 20°C); valence 2, 3, 4, 6. See Periodic Table. See Note at element.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with pump iron (1 of 2)

pump iron


Lift weights, as in She's started pumping iron three times a week. This idiom was born with the late-20th-century stress on physical fitness. [Second half of 1900s]

Idioms and Phrases with pump iron (2 of 2)

iron


In addition to the idioms beginning with iron

  • iron hand
  • iron out
  • irons in the fire, too many

also see:

  • pump iron
  • strike while the iron's hot
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.