Columbia Encyclopedia

(Encyclopedia) duodecimal system: see numeration. ...

(Encyclopedia) integumentary system: see skin.

(Encyclopedia) Bach system: see Bach, Alexander.

(Encyclopedia)  CE5 Reproductive system reproductive system, in animals, the anatomical organs concerned with production of offspring. In humans and other mammals the female reproductive system produces the femal...

(Encyclopedia) Mariinsk System: see Volga-Baltic Waterway. ...

(Encyclopedia)  CE5 Solar system CE5 solar system, the sun and the surrounding planets, natural satellites, dwarf planets, asteroids, meteoroids, and comets that are bound by its gravity. The sun is by far the ...

(Encyclopedia) endocrine system ĕnˈdəkrĭn [key], body control system composed of a group of glands that maintain a stable internal environment by producing chemical regulatory substances called hormones. The end...

(Encyclopedia)  CE5 Instrument-landing system (ILS), the most common instrument-landing approach system, uses two beams to guide an airplane. instrument-landing system (ILS), ground-based radio system designed to...

(Encyclopedia) Modigliani, Franco, 1918–2003, American economist, b. Rome. Jewish, antifascist, and trained as a lawyer, he fled Mussolini's Italy in 1938, settling in the United States in 1939, where he studied e...

(Encyclopedia) Revillagigedo Islands or Revillagigedo Archipelago rāvēˈyähēhāˈᵺō [key], volcanic island group in the Pacific Ocean, c.450 mi (720 km) W of Colima state and S of Baja California, Mexico. The...