The First C in BCC Used in Emails, Blind __ Copy

This page is the CodyCross answer for the clue below from Wild West, Group 440, Puzzle 2 (Gun Holster).

Question is: The First C in BCC Used in Emails, Blind __ Copy

and the answer is: CARBON

Word Meaning:

CARBON — (uncountable) The chemical element (symbol C) with an atomic number of 6. It can be found in pure form for example as graphite, a black, shiny and very soft material, or diamond, a colourless, transparent, crystalline solid and the hardest known material.

Definitions from Wiktionary.

The first C in BCC used in emails, blind __ copy — CodyCross Answer | CodyCross Solutions