['tenәu]
n.
(尤指被看作神一般的宗教领袖的)日本国天皇

[ noun ]
the emperor of Japan; when regarded as a religious leader the emperor is called tenno
<noun.person>

Tenno \Ten*no"\, n. [Jap. tenn[=o], fr. Chin. t'ien heaven +
wang king.]
Lit., King of Heaven; -- a title of the emperor of Japan as
the head of the Shinto religion.
[Webster 1913 Suppl.]