A disturbance in the associative thought process in which one tends to digress readily from one topic under discussion to other topics that arise in the course of associations; observed in bipolar disorder, schizophrenia, and certain types of organic brain disorders. Compare: circumstantiality.
The answer is simple, even if not actually correct. Pregnancies are considered full term at 40 weeks, and many women count four weeks as a month while they are pregnant, making the result a ten month pregnancy. On average there are actually 4.33 weeks in a month, however that a third of a week tends to get lost in the pregnancy shuffle for much of us. Many women also find it easier, when asked how pregnant they are, to answer in weeks instead of months, because pregnancy is generally a count down.
How long it takes for a cow to give birth really depends on her body condition, her experience, how big the calf is inside her, environmental conditions, and whether the calf is presenting normally or not. As a result there really is no set-in-stone time it takes for a cow to give birth. For experienced cows, it's only a matter of 5 to 6 hours until the calf arrives. For a heifer, it can be a few to a number of hours longer. See the related question below for a similar answer. If, by any chance, you are asking how long a cow is pregnant in days, the average is around 285 days long. Please see the related question on the length of gestation below for a more detailed answer. Karin L.