Month: January 2021
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Zygomatic process of the frontal bone
The massive projection of the frontal bone that joins the zygomatic bone to form the lateral margin of the orbit.
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Zoospore
A motile spore found among algae and fungi.
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Zoosporangium
Spore mother cell in which motile asexual spores are formed by mitosis via cleavage of the cytoplasm.
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Zooplankton
Microscopic aquatic animals.
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Zooglea
A translucent, gelatin-like film that adheres to the teeth and surrounding mucous membrane. A stage in development of certain organisms in which colonies of microbes are embedded in a gelatinous matrix.
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Zoogamete
Motile isogamete.
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Zona pelluida
The coating of the human ovum.
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Zero population growth (ZPG)
The point at which the number of births equals the number of deaths in a given population. The demographic equilibrium in which in a given period of time the population neither increases nor decreases, that is, the death and birth rates are equal.
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Zero contract
According to Levinger, a stage prior to a relationship in which a couple is unaware of one another.
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Zen macrobiotic diets
Developed by George Ohsawa in the early 1960s. Based on the misconception that human diseases were unnecessary and could be prevented by diets consisting of unpolished brown rice. Some of the diets included some kinds of vegetables. Nutritionists claim that strict adherence to the Zen diets will result in severe malnutrition in the form of…