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Science > General science

tuning fork

Science; General science

A steel instrument consisting of two prongs and a handle which, when struck, emits a tone of fixed pitch. Because of their simple mechanical structure, purity of tone, and ...

progesterone

Science; General science

A steroid hormone produced in the corpus luteum and placenta. The hormone has an important physiological role in the luteal phase of the menstrual cycle and in the maintenance of ...

amphetamine

Science; General science

A stimulating drug that affects the brain and the body in a variety of ways, also known by the trade name Benzedrine. Chemically, amphetamine is a racemic mixture of the l and ...

torsion

Science; General science

A straining action produced by couples that act normal to the axis of a member. Torsion is identified by a twisting deformation.

conflict analysis and resolution

Science; General science

A strategic conflict is an interaction of two or more decision makers over issues such as rights or resources. Some conflicts, such as terrorist attacks, exhibit outright ...

protective coloration

Science; General science

A strategy that organisms use to avoid or deflect the attacks of predators by misleading the latter's visual senses. Protective devices directed at the hearing or the sense of ...