also: てんがん
noun
imperial coronation crown
Specifically the crown used in the enthronement ceremony of the Japanese emperor. A historical and ceremonial term.
即位の礼では、天皇が天冠を着用される。
At the enthronement ceremony, the emperor wears the imperial coronation crown.
noun
celestial crown; crown of Buddha and heavenly beings
In Buddhist iconography, a decorative crown worn by Buddha, bodhisattvas, or celestial beings, often depicted in statues and paintings.
この仏像の天冠には、精巧な細工が施されている。
The celestial crown of this Buddha statue is intricately crafted.
From 天 (ten, 'heaven') + 冠 (kan, 'crown'). The reading てんがん is a variant using the go-on reading of 冠.