Selenium
/sɪˈliː.ni.əm/noun
A chemical element with the symbol Se, known for its use in electronics and glassmaking.
Did you know?Selenium was discovered in 1817, and its name derives from the Greek word for 'moon', reflecting its connection to lunar energies and alchemical practices.
Etymological Timeline
Ancient Greek
Greek
σελήνη
“Meaning 'moon', indicating the connection with lunar deities.”
17th Century
Latin
selenium
“Adopted from Greek, used to name the newly discovered element.”
19th Century
English
selenium
“First used in scientific contexts to describe the element with properties similar to sulfur.”
Modern English
English
selenium
“Recognized for its applications in technology and its intriguing association with the moon.”
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