(biochemistry) A series of biochemical reactions that take place in the stroma of chloroplasts in photosynthetic organisms.

plural of cycle of fifths

plural of glyoxylate cycle

(mathematics) A chord of a graph cycle, one of whose endpoints is not a vertex.

(thermodynamics) using multiple thermodynamic cycles so that the overall effect is greater than the sum of the parts

(electronics) The ratio between the amount of time in which the clock's signal is high and the clock's period.

(climatology) Any of the three cyclic variations in the Earth's orbit around the Sun, respectively the obliquity of its axis, the precession of the equinoxes, and the eccentricity of its orbit.

plural of Milankovitch cycle

(physiology) The cycle of the thickening of the uterine lining in anticipation of an embryo implantation.

(physiology) The cycle associated with the maturation of the oocyte and its discharge from the ovary, from where it passes through the oviduct to the uterus.