Also found in: Dictionary, Medical, Legal, Acronyms, Idioms, Wikipedia.


formerly the symbol for the element columbium, now called niobiumniobium
, metallic chemical element; symbol Nb; at. no. 41; at. wt. 92.90638; m.p. about 2,468°C;; b.p. 4,742°C;; sp. gr. 8.57 at 20°C;; valence +2, +3, +4, or +5.
..... Click the link for more information.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

catch basin

A reservoir, esp. for catching and retaining surface drainage over a large area, in which sediment may settle.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.


This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)


(1) See CB radio, Current Branch and cell broadcast.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.