selen-
1 of 2combining form (1)
variants or seleno-
: moon
selenium
selenology
selen-
2 of 2combining form (2)
variants or seleni-
: selenium
seleniferous
Word History
Etymology
Combining form (1)
Latin selen-, from Greek selēn-, from selēnē — more at selenium
Combining form (2)
Swedish, from New Latin selenium