Definitions

1. noun

A former English gold coin, equal to half a guinea, issued in 1771-1782.

“The museum’s collection included a rare 1772 platine, minted during the reign of King George III.”

2. noun

In chemistry, a series of elements with atomic numbers 175 to 184, which are expected to exhibit properties similar to the platinum group.

“Researchers predicted that the newly discovered elements would form a platine series, with unique chemical properties.”