[1] : The Collaborative International Dictionary of English v.0.48

ursa \ur"sa\, n. l. ursa a she-bear, also, a constellation,
   fem. of ursus a bear. cf. arctic. astron.
   either one of the bears. see the phrases below.
   1913 webster

   ursa major l., the great bear, one of the most
      conspicuous of the northern constellations. it is situated
      near the pole, and contains the stars which form the
      dipper, or charles's wain, two of which are the pointers,
      or stars which point towards the north star.

   ursa minor l., the little bear, the constellation nearest
      the north pole. it contains the north star, or polestar,
      which is situated in the extremity of the tail.
      1913 webster
see also:
arctic ursa major ursa minor 

[2] : U.S. Gazetteer (1990)

ursa, il village, fips 77044
  location: 40.07461 n, 91.37063 w
  population 1990: 506 208 housing units
  area: 1.6 sq km land, 0.0 sq km water
  zip codes: 62376

[3] : U.S. Gazetteer Places (2000)

ursa, il -- u.s. village in illinois
   population 2000:    595
   housing units 2000: 261
   land area 2000:     0.681639 sq. miles 1.765437 sq. km
   water area 2000:    0.000000 sq. miles 0.000000 sq. km
   total area 2000:    0.681639 sq. miles 1.765437 sq. km
   fips code:            77044
   located within:       illinois il, fips 17
   location:             40.074653 n, 91.370776 w
   zip codes 1990:     62376
   note: some zip codes may be omitted esp. for suburbs.
   headwords:
    ursa, il
    ursa

Ursa >> U Words
Ursa, definition of term: Ursa
ursa_pag1.html

Ursa Minor >> U Words
Ursa Minor, definition of term: Ursa Minor
ursa+minor_pag1.html

Ursa Major >> U Words
Ursa Major, definition of term: Ursa Major
ursa+major_pag1.html