columbium
Kelime Anlamı :

1. kolombiyum.
2. Bakınız: Niobium.
Tanımlar :
1. niobium. no longer in scientific use.
from The American Heritage® Dictionary of the English Language, 4th Edition
1. A former name of niobium/
from Wiktionary, Creative Commons Attribution/Share-Alike License
1. A rare element of the vanadium group, first found in a variety of the mineral columbite occurring in connecticut, probably at Haddam. atomic weight 94.2. symbol cb or nb. now more commonly called niobium.
from the GNU version of the Collaborative International Dictionary of English
1. same as niobium.
2. in chem., a supposed new element announced in 1879 by J. L. smith as present in the mineral samarskite: its existence has not been confirmed. distinct from the previously known element columbium or niobium.
from The Century Dictionary and Cyclopedia
1. a former name for niobium
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.