The Collaborative International Dictionary of English v.0.48:

Slater \Slat"er\, n.
   One who lays slates, or whose occupation is to slate
   buildings.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Slater \Slat"er\, n. (Zool.)
   Any terrestrial isopod crustacean of the genus Porcellio
   and allied genera; a sow bug.
   [1913 Webster]

WordNet (r) 3.0 (2006):

slater
    n 1: any of various small terrestrial isopods having a flat
         elliptical segmented body; found in damp habitats [syn:
         woodlouse, slater]

U.S. Gazetteer Places (2000):

Slater, WY -- U.S. Census Designated Place in Wyoming
   Population (2000):    82
   Housing Units (2000): 42
   Land area (2000):     73.983608 sq. miles (191.616657 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    73.983608 sq. miles (191.616657 sq. km)
   FIPS code:            71295
   Located within:       Wyoming (WY), FIPS 56
   Location:             41.872820 N, 104.779088 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Slater, WY
    Slater


U.S. Gazetteer Places (2000):

Slater, MO -- U.S. city in Missouri
   Population (2000):    2083
   Housing Units (2000): 1072
   Land area (2000):     1.447458 sq. miles (3.748900 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.447458 sq. miles (3.748900 sq. km)
   FIPS code:            68204
   Located within:       Missouri (MO), FIPS 29
   Location:             39.221658 N, 93.062529 W
   ZIP Codes (1990):     65349
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Slater, MO
    Slater


U.S. Gazetteer Places (2000):

Slater, IA -- U.S. city in Iowa
   Population (2000):    1306
   Housing Units (2000): 555
   Land area (2000):     1.234879 sq. miles (3.198323 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.234879 sq. miles (3.198323 sq. km)
   FIPS code:            73515
   Located within:       Iowa (IA), FIPS 19
   Location:             41.880265 N, 93.681642 W
   ZIP Codes (1990):     50244
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Slater, IA
    Slater


U.S. Gazetteer Places (2000):

Slater-Marietta, SC -- U.S. Census Designated Place in South Carolina
   Population (2000):    2228
   Housing Units (2000): 989
   Land area (2000):     4.296903 sq. miles (11.128928 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    4.296903 sq. miles (11.128928 sq. km)
   FIPS code:            66917
   Located within:       South Carolina (SC), FIPS 45
   Location:             35.029244 N, 82.497410 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Slater-Marietta, SC
    Slater-Marietta
    Slater, SC
    Slater