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167 Topic Pages Found in Science and starting with the letter M
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Maathai, Wangari

Wangari Muta Maathai, founder of the Green Belt Movement, is an activist for environmental conservation, democracy, and women's rights; a professor;

Macadamia nut

Native to Australia, the macadamia tree is now cultivated in other countries including Hawaii and South Africa—a rare example of a native

Open macaque

( məkäk' ), name for Old World monkeys of the genus Macaca, related to mangabeys, mandrills, and baboons. All but one of the 19 species are found in

Mach, Ernst (1838 - 1916)

Place : Austria Subject : biography, physics Austrian physicist whose name was given to the Mach number, the velocity of a body in a medium relative

Open machine

arrangement of moving and stationary mechanical parts used to perform some useful work or to provide transportation. From a historical perspective,


common name for members of the family Scombridae, open-sea fishes including the albacore, bonito, and tuna . They are characterized by deeply forked

Macleod, John James Rickard (1876 - 1935)

Scottish physiologist who was awarded a Nobel Prize for Physiology or Medicine in 1923 with Frederick Banting for their part in the discovery and

MacMillan, Donald Baxter (1874 - 1970)

1874–1970, American arctic explorer, b. Provincetown, Mass., grad. Bowdoin College, 1898, and studied at Harvard. After a decade of teaching, he went

Open macular degeneration
macular degeneration

eye disorder causing loss of central vision. The affected area, the macula, lies at the back of the retina and is the part that produces the sharpest


common name for the Rubiaceae, a family of chiefly tropical and subtropical trees, shrubs, and herbs, especially abundant in N South America. The