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单词 tc
释义

Tcn.

Brit. /ˌtiːˈsiː/, U.S. /ˌtiˈsi/
Origin: Formed within English, by clipping or shortening. Etymon: technetium n.
Etymology: Symbolic abbreviation for technetium n.
Chemistry.
The element technetium.
ΚΠ
1947 C. Perrier & E. Segrè in Nature 4 Jan. 24/1 We would like to propose the name of ‘technetium’... The corresponding chemical symbol should be ‘Tc’.
1967 Canad. Med. Assoc. Jrnl. 29 July 212/1 The quality of the image is equal to the scans obtained with 99mTc-tagged albumin.
2003 Irish Times 24 June 7/6 Greenpeace..found low levels of Technetium-99 (Tc-99) in farmed, Scottish wet and smoked salmon.
This is a new entry (OED Third Edition, December 2013; most recently modified version published online March 2022).
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n.1947
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