[suh-peer-ee-er, soo-]
  1. Lake, a lake in the N central United States and S Canada: the northernmost of the Great Lakes; the largest body of fresh water in the world. 350 miles (564 km) long; 31,820 sq. mi. (82,415 sq. km); greatest depth, 1290 feet (393 meters); 602 feet (183 meters) above sea level.
  2. a port in NW Wisconsin, on Lake Superior. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for lake-superior


  1. greater in quality, quantity, etc
  2. of high or extraordinary worth, merit, etc
  3. higher in rank or statusa superior tribunal
  4. displaying a conscious sense of being above or better than others; supercilious
  5. (often postpositive foll by to) not susceptible (to) or influenced (by)
  6. placed higher up; situated further from the base
  7. astronomy
    1. (of a planet) having an orbit further from the sun than the orbit of the earth
    2. (of a conjunction) occurring when the sun lies between the earth and an inferior planet
  8. (of a plant ovary) situated above the calyx and other floral parts
  9. anatomy (of one part in relation to another) situated above or higher
  10. printing (of a character) written or printed above the line; superscript
  1. a person or thing of greater rank or quality
  2. printing a character set in a superior position
  3. (often capital) the head of a community in a religious order
Derived Formssuperioress, fem nsuperiority (suːˌpɪərɪˈɒrɪtɪ), nounsuperiorly, adverb

Word Origin for superior

C14: from Latin, from superus placed above, from super above


Superior should not be used with than: he is a better (not a superior) poet than his brother; his poetry is superior to (not superior than) his brother's


  1. Lake Superior a lake in the N central US and S Canada: one of the largest freshwater lakes in the world and westernmost of the Great Lakes. Area: 82 362 sq km (31 800 sq miles)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for lake-superior



late 14c., "higher in position," from Old French superior, from Latin superiorem (nominative superior) "higher," comparative of superus "situated above, upper," from super "above, over" (see super-). Meaning "higher in rank or dignity" is attested from late 15c.; sense of "of a higher nature or character" is attested from 1530s. Original sense was preserved more strongly in French (cf. les étages supérieur "the upper stories"), and in Lake Superior, a loan-translation of French Lac Supérieur, literally "upper lake" (it has the highest elevation of the five Great Lakes).

Online Etymology Dictionary, © 2010 Douglas Harper

lake-superior in Medicine


  1. Higher than another in rank, station, or authority.
  2. Situated above or directed upward.
  3. Situated nearer the top of the head.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.