Noun
an innate mechanism in living organisms that controls the periodicity of many physiological functions
Source: WordNetI never went through a biological clock experience. I never even heard it ticking. Jane Lynch
I could see myself still swimming because I'm really enjoying the sport. But at the same time I have this biological clock that is ticking. Libby Trickett
I'm single, and I think that by the time I met someone - if I were ever to meet the right person, which I don't think I will, because I am too fussy - my biological clock means that it will be too late. Julia Sawalha
No man wants to feel that he's there because of his woman's biological clock or because he's filling a job opening for husband or significant other. George Weinberg
I felt that the biological clock was some myth to keep me from doing what I wanted to do. And so I rebelled against it in the '90s. I thought it was a backlasher, some sort of faulty data. But it's real. I'm glad I woke up before my body was just like 'uh-uh.' Lili Taylor
There's already a marriage clock, a career clock, a biological clock. Sometimes being a woman feels like standing in the lobby of a hotel, looking at the dials depicting every time zone in the world behind the front desk - except they all apply to you, and all at once. Sloane Crosley