Glossary M

Menopause is defined as the cessation of menstruation. Menopause is a stage when the female ovaries Stop producing eggs. It occurs around the age of 50 for women and is accompanied by a drop in hormone levels.

Mens rea is the Latin word which literally "guilty mind" refers to an awareness of wrongdoing; the intention to commit a criminal act or behave recklessly.

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Menstrual cycle refers to a periodic variation in hormones and fertility in women over the course of approximately one (1) month.

Menstrual synchrony refers to synchronized menstruation of women who live together. These women experience menstrual periods that begin at approximately the same time. There is evidence that the sense of smell is involved in determining this effect.

Mental age refers to the age for which a given score on a mental ability test is average or normal.

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Mental chemistry refers to the process by which individual sensations can combine to form a new sensation that is different from any of the individual sensations that constitute it.

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Mental chronometry refers to the measurement of the time required to perform various mental acts.

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Mental combinations is a term in used in Piaget's theory, referring to the final substage of sensorimotor development, a transition between the action-oriented world of the infant and the symbol-oriented world of the child.