DICT.TW Dictionary Taiwan

 In·ter·stice n.; pl. Interstices
 1. 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.
 2. 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.
    Nonobservance of the interstices . . . is a sin.   --Addis & Arnold.
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