Meanings
-
1
noun
an ornamental headband or crown worn as a sign of royalty
A gold diadem set with emeralds rested on the queen's brow.
-
2
noun
something that encircles or adorns the head like a crown
A diadem of frost glittered along the mountain ridge at dawn.
Thesaurus
Etymology
From Middle English diademe, through Old French and Latin diadema, from Greek diadema ('band, royal headband'). The Greek noun comes from diadein, 'to bind around,' describing the band worn around a ruler's head.