period
n. १ (the portion of time determined by some recurring phenomenon; a division of time in which something is completed and ready to commence and go on in the same order; as, a chronological division) काल (पु.), कालखंड (पु.) cf. age युग epoch १ युग २ युगारंभ era शक २ (as, the interval of time required for a cyclic motion or phenomenon to complete a cycle and begin to repeat itself) आवर्त (पु.) cf. cycle; आवर्तकाल (पु.) ३ (as, the life of a radioactive element) आयुकाल (पु.) ४ Chem. (a sequence of elements of increasing atomic numbers as represented usu. in horizontal rows in the periodic table) आवर्त (पु.) ५ Geol. (a division of geologic time longer than an epoch and included in an era) कल्प (पु.) cf. age युग epoch उपकल्प era महाकल्प ६ मुदत (स्त्री.), अवधि (पु.), कालावधि (पु.)