تلفظ بین المللی : /dʒˈiːsɪkˌaɪt/ تلفظ : [dZ'i:sI2k,aIt]EnglishEnglish
English
A mineral occurring in greenish gray six-sided prisms,
having a greasy luster. It is probably a pseudomorph after elaeolite.
1. (Arch.) (a) The open space in a floor, to accommodate a staircase. (b) The open space left beyond the ends of the steps of a staircase. 2. A cavity which receives a counterbalancing weight in certain mechanical contrivances, and is adapted also for other purposes...