noun an interval of time; specifically (r. c. ch.), in the plural, the intervals which the canon law requires between the reception of the various degrees of orders.
2. interstice ·noun that which intervenes between one thing and another; especially, a space between things closely set, or between the parts which compose a body; a narrow chink; a crack; a crevice; a hole; an interval; as, the interstices of a wall.