Dictionary.com

rutherfordium

[ ruhth-er-fawr-dee-uhm, -fohr-, ruhth- ]
/ ˌrʌð ərˈfɔr di əm, -ˈfoʊr-, ˌrʌθ- /
Save This Word!

noun Chemistry, Physics.
a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Rf; atomic number: 104.
QUIZ
QUIZ YOURSELF ON AFFECT VS. EFFECT!
In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help
Formerly un·nil·qua·di·um [uhn-uhn-kwah-dee-uhm], /ˌʌn ənˈkwɑ di əm/, el·e·ment 104 .

Origin of rutherfordium

First recorded in 1965–70; named after English physicist Ernest Rutherford.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

British Dictionary definitions for rutherfordium

rutherfordium
/ (ˌrʌðəˈfɔːdɪəm) /

noun
a transactinide element produced by bombarding californium-249 nuclei with carbon-12 nuclei. Symbol: Rf; atomic number.: 104; atomic wt: 261Name in the former Soviet Union: kurchatovium

Word Origin for rutherfordium

C20: named after Ernest Rutherford
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

Medical definitions for rutherfordium

rutherfordium
[ rŭð′ər-fərdē-əm ]

n. Symbol Rf
A radioactive synthetic element whose longest-lived isotopes haved mass numbers of 253, 255, 257, and 259 with half-lives of 1.8, 1.6, 4.7, and 3.4 seconds. Atomic number 104.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for rutherfordium

rutherfordium
[ rŭð′ər-fôrdē-əm ]

Rf
A synthetic, radioactive element that is produced by bombarding plutonium with carbon or neon ions. Its most stable isotope is Rf 261 with a half-life of 62 seconds. Atomic number 104. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK