electrum

UK: /ɪˈlɛktrəm/ US: (i lek′trəm)

WordReference Random House Unabridged Dictionary of American English © 2025

e•lec•trum  (i lek′trəm), n. 

1. Metallurgy, Antiquity an amber-colored alloy of gold and silver used in ancient times.
2. Metallurgy an alloy composed of about 50 percent copper, 30 percent nickel, and 20 percent zinc.
3. Metallurgy German silver;
   nickel silver.

• Greek é̄lektron amber, alloy of gold and silver
• Latin
• Middle English 1350–1400

Collins Concise English Dictionary © HarperCollins Publishers::

electrum / ɪˈlɛktrəm/ noun

1. an alloy of gold (55–88 per cent) and silver used for jewellery and ornaments

Etymology: 14th Century: from Latin, from Greek ēlektron amber