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adrenal gland

(Encyclopedia)CE5 Adrenal glands: The cross-sectioned area shows the adrenal cortex and medulla. adrenal gland so͞oprərēnˈəl [key], endocrine gland (see endocrine system) about 2 in. (5.1 cm) long situated...

lycanthropy

(Encyclopedia)lycanthropy līkănˈthrəpē [key], in folklore, assumption by a human of the appearance and characteristics of an animal. Ancient belief in lycanthropy was widespread, and it still exists in parts o...

Mifune, Toshiro

(Encyclopedia)Mifune, Toshiro təshērˈō mĭfo͞oˈnē [key], 1920–97, Japanese actor, b. Qingdao, China. Mifune was a versatile actor, noted for a wide range of roles in more than 120 films. He appeared in mor...

Attis

(Encyclopedia)Attis āˈ– [key], in Phrygian religion, vegetation god. When Nana ate the fruit of the almond tree, which had been generated by the blood of either Agdistis or of Cybele, she conceived Attis. Later...

Malpighi, Marcello

(Encyclopedia)Malpighi, Marcello märchĕlˈlō mälpēˈgē [key], 1628–94, Italian anatomist. A pioneer in the use of the microscope, he made many valuable observations on the structure of plants and animals. H...

Masai

(Encyclopedia)Masai or Maasai mäsīˈ [key], a largely nomadic pastoral people of E Africa, chiefly in Kenya and Tanzania. Cattle and sheep form the basis of the economy that they have maintained in resistance to ...

albino

(Encyclopedia)albino ălbīˈnō [key] [Port.,=white], animal or plant lacking normal pigmentation. The absence of pigment is observed in the body covering (skin, hair, and feathers) and in the iris of the eye. The...

chelating agents

(Encyclopedia)chelating agents kēˈlātĭng [key]. Certain organic compounds are capable of forming coordinate bonds (see chemical bond) with metals through two or more atoms of the organic compound; such organic ...

Addison's disease

(Encyclopedia)Addison's disease [for Thomas Addison], progressive disease brought about by atrophy of the outer layer, or cortex, of the adrenal gland; it is also called chronic adrenocortical insufficiency. The de...

valve

(Encyclopedia)valve, device for controlling the flow of fluids (liquids and gases). Valves vary in construction and size depending upon their function. Some are classified according to their method of operation or ...