(of an organism or tissue) living in the absence of air or free oxygen. pertaining to or caused by the absence of oxygen.
Parakeets can breed year round if conditions are right in their environment. Normal breeding season begins early in the year and continues until fall. It is very rare to see parakeets mating, but a male and a female must mate to keep the eggs fertile.
Definition of 'mating season'. mating season (ËmeÉªtÉªÅ ËsiËzÉn) noun. the period during each year when a particular bird, animal, or fish mates. During the mating season, schools of passionate cod make so much noise that the submarine's sonar cannot hear anything else. Example sentences containing 'mating season'.