Crossword Genius

Metalloid element (5)

Ross

I believe the answer is:

boron

'metalloid element' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for boron that I've seen before include "Chemical element, symbol B" , "Metalloid element, B" , "Atomic no 5" , "component of steel" , "element needed for steel" .)

I've seen this clue in the Canadiana, The Times and The Chronicle of Higher Education.
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