Open Dictionary
Join now
mouse here to listen, click to choose/add more
Location: USA
Source: Learn That Word
Profile URL: www.learnthat.org
play again like it has problem

Are you a native English speaker? How do you pronounce this word?

Thank you for contributing!
upload mp3 file or record now it's easy, promised!

{%type%} Definitions

WordNet 3.0Copyright Princeton University
{%wordnet%}
Definitions.net
{%definitions_com%}

Videos

Click here to upload you own video for this word!
Short "hint"

n. - A bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil; The chamber of a nuclear reactor containing the fissile material where the reaction takes place;

edit
Usage examples (36)
  • The magnetic field of the Earth is generated in its molten iron core.
  • core an apple
  • Five periodicals make up the core of their publishing program
  • A city with people living in the core is a better city.
...click for more
Tutoring comment
  • Some people think the Marine "Corps" (a large or specialized military unit) is the "core" (the center or mainstay of any organization or system) of our armed forces.
add more
wordnik merriam-webster
The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.

LearnThatWord and the Open Dictionary of English are programs by LearnThat Foundation, a 501(c)3 nonprofit.

Questions? Feedback? We want to hear from you!
Email us or click here for instant support.

Copyright © 2005 and after - LearnThat Foundation. Patents pending.