The Collaborative International Dictionary of English v.0.48:

Galena \Ga*le"na\, n.[L. galena lead ore, dross that remains
   after melting lead: cf. F. gal[`e]ne sulphide of lead ore,
   antidote to poison, stillness of the sea, calm, tranquility.]
   [1913 Webster]
   1. (Med.) A remedy or antidote for poison; theriaca. [Obs.]
      --Parr.
      [1913 Webster]

   2. (Min.) Lead sulphide; the principal ore of lead. It is of
      a bluish gray color and metallic luster, and is cubic in
      crystallization and cleavage.
      [1913 Webster]

   False galena. See Blende. Galenic

WordNet (r) 3.0 (2006):

galena
    n 1: soft blue-grey mineral; lead sulfide; a major source of
         lead

U.S. Gazetteer Places (2000):

Galena, AK -- U.S. city in Alaska
   Population (2000):    675
   Housing Units (2000): 259
   Land area (2000):     17.874774 sq. miles (46.295451 sq. km)
   Water area (2000):    6.092414 sq. miles (15.779280 sq. km)
   Total area (2000):    23.967188 sq. miles (62.074731 sq. km)
   FIPS code:            27530
   Located within:       Alaska (AK), FIPS 02
   Location:             64.740643 N, 156.885462 W
   ZIP Codes (1990):     99741
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Galena, AK
    Galena


U.S. Gazetteer Places (2000):

Galena, OH -- U.S. village in Ohio
   Population (2000):    305
   Housing Units (2000): 132
   Land area (2000):     0.598285 sq. miles (1.549552 sq. km)
   Water area (2000):    0.045776 sq. miles (0.118560 sq. km)
   Total area (2000):    0.644061 sq. miles (1.668112 sq. km)
   FIPS code:            29148
   Located within:       Ohio (OH), FIPS 39
   Location:             40.215214 N, 82.881757 W
   ZIP Codes (1990):     43021
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Galena, OH
    Galena


U.S. Gazetteer Places (2000):

Galena, IL -- U.S. city in Illinois
   Population (2000):    3460
   Housing Units (2000): 1821
   Land area (2000):     3.734739 sq. miles (9.672929 sq. km)
   Water area (2000):    0.000524 sq. miles (0.001358 sq. km)
   Total area (2000):    3.735263 sq. miles (9.674287 sq. km)
   FIPS code:            28300
   Located within:       Illinois (IL), FIPS 17
   Location:             42.418171 N, 90.431472 W
   ZIP Codes (1990):     61036
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Galena, IL
    Galena


U.S. Gazetteer Places (2000):

Galena, IN -- U.S. Census Designated Place in Indiana
   Population (2000):    1831
   Housing Units (2000): 638
   Land area (2000):     2.649128 sq. miles (6.861210 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    2.649128 sq. miles (6.861210 sq. km)
   FIPS code:            26206
   Located within:       Indiana (IN), FIPS 18
   Location:             38.350585 N, 85.940435 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Galena, IN
    Galena


U.S. Gazetteer Places (2000):

Galena, KS -- U.S. city in Kansas
   Population (2000):    3287
   Housing Units (2000): 1471
   Land area (2000):     4.552979 sq. miles (11.792162 sq. km)
   Water area (2000):    0.048870 sq. miles (0.126573 sq. km)
   Total area (2000):    4.601849 sq. miles (11.918735 sq. km)
   FIPS code:            25100
   Located within:       Kansas (KS), FIPS 20
   Location:             37.074459 N, 94.635549 W
   ZIP Codes (1990):     66739
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Galena, KS
    Galena


U.S. Gazetteer Places (2000):

Galena, MD -- U.S. town in Maryland
   Population (2000):    428
   Housing Units (2000): 202
   Land area (2000):     0.354258 sq. miles (0.917524 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.354258 sq. miles (0.917524 sq. km)
   FIPS code:            31225
   Located within:       Maryland (MD), FIPS 24
   Location:             39.341680 N, 75.878444 W
   ZIP Codes (1990):     21635
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Galena, MD
    Galena


U.S. Gazetteer Places (2000):

Galena, MO -- U.S. city in Missouri
   Population (2000):    451
   Housing Units (2000): 215
   Land area (2000):     0.683641 sq. miles (1.770623 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.683641 sq. miles (1.770623 sq. km)
   FIPS code:            26254
   Located within:       Missouri (MO), FIPS 29
   Location:             36.805497 N, 93.467261 W
   ZIP Codes (1990):     65656
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Galena, MO
    Galena