Symbol, Chemistry.

Definition for tc (2 of 2)


Teachers College.
Trusteeship Council (of the United Nations). Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for tc

British Dictionary definitions for tc (1 of 3)


the internet domain name for

Turks and Caicos Islands

British Dictionary definitions for tc (2 of 3)


the chemical symbol for


British Dictionary definitions for tc (3 of 3)


abbreviation for (on cars, etc)

twin carburettors
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 tc


The symbol for the elementtechnetium
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for tc (1 of 2)


The symbol for technetium.

Scientific definitions for tc (2 of 2)

[ tĕk-nēshē-əm ]


A silvery-gray, radioactive metallic element. It was the first element to be artificially made, and it is produced naturally in extremely small amounts during the radioactive decay of uranium. Technetium is used to remove corrosion from steel. Its longest-lived isotope is Tc 98 with a half-life of 4,200,000 years. Atomic number 43; melting point 2,200°C; specific gravity 11.50; valence 0, 2, 4, 5, 6, 7. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.