Locus

from WordNet (r) 3.0 (2006)

locus
    n 1: the scene of any event or action (especially the place of a
         meeting) [syn: {venue}, {locale}, {locus}]
    2: the specific site of a particular gene on its chromosome
    3: the set of all points or lines that satisfy or are determined
       by specific conditions; "the locus of points equidistant from
       a given point is a circle"

from The Collaborative International Dictionary of English v.0.48

Locus \Lo"cus\, n.; pl. {Loci}, & {Loca}. [L., place. Cf.
   {Allow}, {Couch}, {Lieu}, {Local}.]
   1. A place; a locality.
      [1913 Webster]

   2. (Math.) The line traced by a point which varies its
      position according to some determinate law; the surface
      described by a point or line that moves according to a
      given law.
      [1913 Webster]

   {Plane locus}, a locus that is a straight line, or a circle.
      

   {Solid locus}, a locus that is one of the conic sections.
      [1913 Webster]

from The Free On-line Dictionary of Computing (8 July 2008)

Locus

   A distributed system project supporting transparent access to
   data through a network-wide file system.

from Moby Thesaurus II by Grady Ward, 1.0

27 Moby Thesaurus words for "locus":
      abode, area, bearings, bench mark, district, emplacement, hole,
      latitude and longitude, lieu, locale, locality, location, pinpoint,
      place, placement, point, position, region, site, situation, situs,
      spot, station, stead, where, whereabout, whereabouts