What is the meaning of Tantalum?

A chemical element (symbol Ta) with atomic number 73: a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant.

Chambers Dictionary of Etymology, Robert K. Barnhart (ed.), Chambers, 1988

Alternative form of tantal

tantalum

tantalum

A part of tantalum

tantalum

Source: wiktionary.org