(1)胞衣
指胎盘及羊膜。

(2)遗腹生
指在父亲死后或父母任一方立遗嘱后孩子的出生。

• periculo petentis
• Periculosum est res novas et inusitatas inducere.
• Periculosum existimo quod bonorum virorum non comprobatur exemplo.
• periculosus
• periculum
• Periculum rei venditae, nondum traditae, est emptoris.
• peril
• peril of the sea
• perils of inland waters
• perils of river, lake, or canal
• perils of the lakes
• per incuriam
• perinde valere
• per industriam
• per industriam hominis
• per infortunium
• per interim charge d'affairs
• period
• periodic
• periodical appropriation
• periodic alimony
• periodical rests
• periodic apportionment
• periodic employee
• periodic insanity