Nehushtan

Boyd’s Bible Dictionary:

(little brazen thing). Name of the preserved brazen serpent destroyed by King Hezekiah (2 Kings 18:4).

Concise Bible Dictionary:

Name of contempt given by Hezekiah to the brazen serpent, when he destroyed it because the Israelites burnt incense to it. He called it a “piece of brass,” as in the margin (2 Kings 18:4).

Strong’s Dictionary of Hebrew Words:

Transliteration:
Nchushtan
Phonic:
nekh-oosh-tawn’
Meaning:
from 5178; something made of copper, i.e. the copper serpent of the Desert
KJV Usage:
Nehushtan

Jackson’s Dictionary of Scripture Proper Names:

a bit of bronze

Potts’ Bible Proper Names:

Piece of brass or copper; brass-image:―serpent of the desert, 2 Kings 18:4. {Portio aeramenti}