from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A material that absorbs neutrons in a reactor.
from the GNU version of the Collaborative International Dictionary of English
- n. One who, or that which, absorbs.
from The Century Dictionary and Cyclopedia
- n. One who or that which absorbs.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (physics) material in a nuclear reactor that absorbs radiation
absorb + -er (Wiktionary)