The Collaborative International Dictionary of English v.0.48:

Partition \Par*ti"tion\, v. t. [imp. & p. p. Partitioned; p.
   pr. & vb. n. Partitioning.]
   1. To divide into parts or shares; to divide and distribute;
      as, to partition an estate among various heirs.
      [1913 Webster]

   2. To divide into distinct parts by lines, walls, etc.; as,
      to partition a house.
      [1913 Webster]

            Uniform without, though severally partitioned
            within.                               --Bacon.
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The Collaborative International Dictionary of English v.0.48:

Partition \Par*ti"tion\, n. [F. partition, L. partitio. See
   Part, v.]
   1. The act of parting or dividing; the state of being parted;
      separation; division; distribution; as, the partition of a
      kingdom.
      [1913 Webster]

            And good from bad find no partition.  --Shak.
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   2. That which divides or separates; that by which different
      things, or distinct parts of the same thing, are
      separated; separating boundary; dividing line or space;
      specifically, an interior wall dividing one part or
      apartment of a house, a compartment of a room, an
      inclosure, or the like, from another; as, a brick
      partition; lath and plaster partitions; cubicles with
      four-foot high partitions.
      [1913 Webster +PJC]

            No sight could pass
            Betwixt the nice partitions of the grass. --Dryden.
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   3. A part divided off by walls; an apartment; a compartment.
      [R.] "Lodged in a small partition." --Milton.
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   4. (Law.) The severance of common or undivided interests,
      particularly in real estate. It may be effected by consent
      of parties, or by compulsion of law.
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   5. (Mus.) A score.
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   Partition of numbers (Math.), the resolution of integers
      into parts subject to given conditions. --Brande & C.
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WordNet (r) 3.0 (2006):

partition
    n 1: a vertical structure that divides or separates (as a wall
         divides one room from another) [syn: partition,
         divider]
    2: (computer science) the part of a hard disk that is dedicated
       to a particular operating system or application and accessed
       as a single unit
    3: (anatomy) a structure that separates areas in an organism
    4: the act of dividing or partitioning; separation by the
       creation of a boundary that divides or keeps apart [syn:
       division, partition, partitioning, segmentation,
       sectionalization, sectionalisation]
    v 1: divide into parts, pieces, or sections; "The Arab peninsula
         was partitioned by the British" [syn: partition,
         partition off]
    2: separate or apportion into sections; "partition a room off"
       [syn: partition, zone]

The Free On-line Dictionary of Computing (19 January 2023):

partition

   1.  A logical section of a disk.  Each partition
   normally has its own file system.  Unix tends to treat
   partitions as though they were separate physical entities.

   2.  A division of a set into subsets so that each
   of its elements is in exactly one subset.

   (1996-12-09)