被蓋 is read as ひがい (higai) and means tegmentum.
ひがい
higai
かぶせぶた
slip-on lid
かぶる
to be deceived
ひこく
defendant
(suffering) damage
ひしゃたい
(photographic) subject
ひふく
clothing
ひこくにん
accused
ひがいしゃ
victim
ひばく
being bombed
かぶせる
to cover (with something)
ひぎしゃ
suspect
ひけんしゃ
examinee (of a full-body scan, etc.)