• Webster's Revised Unabridged Dictionary
    • n Platinoid (Chem) An alloy of German silver containing tungsten; -- used for forming electrical resistance coils and standards.
    • a Platinoid Resembling platinum.
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Century Dictionary and Cyclopedia
    • n platinoid One of the metals with which platinum is invariably found associated. The platinoids are palladium, rhodium, iridium, osmium, and ruthenium.
    • n platinoid An alloy, resembling German silver, composed of 60 parts copper, 14 parts nickel, 24 parts zinc and 1 to 2 parts tungsten. It has a greater resistance than German silver, and it is used largely in electrical work.
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Chambers's Twentieth Century Dictionary
    • ns Platinoid one of the metals with which platinum is always found associated—palladium iridium, &c
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Webster's Revised Unabridged Dictionary
Platinum, + -oid,
Chambers's Twentieth Century Dictionary
Sp. platina—plata, plate.


In literature:

German Silver, Platinoid, Silver, and Platinum are treated like iron.
"On Laboratory Arts" by Richard Threlfall
The platinoid coil was insulated from the water by shellac varnish.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1" by Various