(law) A patent relating to a particular area of technology which prevents another patent from being used because the other patent relies on technology covered by the first.

(music, US) Alternative form of two hundred fifty-sixth note.

plural of spherosiderite

Capparis spinosa, a perennial winter-deciduous plant that bears rounded, fleshy leaves and large white to pinkish-white flowers, often eaten as pickled buds (capers).