kai-awase (a Heian period game involving matching two pieces of a clamshell) / (slang) tribadism

Kyūjitai form of 内核 (“internal angle, inner corner”)

a lamp shell, lingulate brachiopod of the family Lingulidae

lampshell excluding the lingulate brachiopods (Articulata)

Kyūjitai form of 内郭 (“inner enclosure”)

Kyūjitai form of 知内

blood cockle, blood clam (an Asian species of bivalve resembling the cockle) (Tegillarca granosa)

shell money; cowry currency

juvenile shellfish

juvenile shellfish