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nautilus, in zoology

(Encyclopedia)nautilus or chambered nautilus, cephalopod mollusk belonging to the sole surviving genus (Nautilus) of a subclass that flourished 200 million years ago, known as the nautiloids. The spirally coiled sh...

Olmert, Ehud

(Encyclopedia)Olmert, Ehud āˈkho͞od ōlˈmârt [key], 1945–, Israeli politician. After serving in the army and working as a lawyer, he won election to the Knesset in 1973 as a Likud candidate. Under Prime Mini...

O'Keeffe, Georgia

(Encyclopedia)O'Keeffe, Georgia ōkēfˈ [key], 1887–1986, American painter, b. Sun Prairie, Wis. After working briefly as a commercial artist in Chicago, O'Keeffe abandoned painting until she began the study of ...

Lerdo de Tejada, Miguel

(Encyclopedia)Lerdo de Tejada, Miguel mēgĕlˈ lĕrˈᵺō dā tāhäˈᵺä [key], d. 1861, Mexican liberal statesman, a leader of the Revolution of Ayutla, cabinet member under Juan Álvarez. As minister under C...

Lysippos

(Encyclopedia)Lysippos līsĭpˈəs [key], fl. late 4th cent. b.c., Greek sculptor, head of the Sicyon school. Hellenistic sculpture was based largely on the style he introduced. In treating the human figure, he mo...

Louvois, François Michel Le Tellier, marquis de

(Encyclopedia)Louvois, François Michel Le Tellier, marquis de fräNswäˈ mēshĕlˈ lə tĕlyāˈ märkēˈ də lo͞ovwäˈ [key], 1641–91, French statesman, minister during the reign of King Louis XIV. After 1...

mandrill

(Encyclopedia)mandrill, large monkey, Mandrillus sphinx, of central W Africa, related to the baboons. Mandrills are found in forests, while baboons live in open country. The fur of the mandrill is mostly dark brown...

Marcantonio, Vito

(Encyclopedia)Marcantonio, Vito vēˈtō märkăntōˈnēō [key], 1902–54, American politician, b. New York City. After the age of 18 he was active in community affairs in the Harlem section of New York City. He...

Mindszenty, József

(Encyclopedia)Mindszenty, József mĭndˈsĕntē [key], 1892–1975, Hungarian prelate, cardinal of the Roman Catholic Church. He was bishop of Veszprém during the German occupation of Hungary in World War II. His...

mastiff

(Encyclopedia)mastiff măsˈtĭf [key], breed of very large, powerful working dog developed in England more than 2,000 years ago. It stands from 27 to 33 in. (68.6–83.8 cm) high at the shoulder and weighs from 16...