The Collaborative International Dictionary of English v.0.48:

Divisible \Di*vis"i*ble\, a. [L. divisibilis, fr. dividere: cf.
   F. divisible. See Divide.]
   Capable of being divided or separated.
   [1913 Webster]

         Extended substance . . . is divisible into parts. --Sir
                                                  W. Hamilton.
   [1913 Webster]

   Divisible contract (Law), a contract containing agreements
      one of which can be separated from the other.

   Divisible offense (Law), an offense containing a lesser
      offense in one of a greater grade, so that on the latter
      there can be an acquittal, while on the former there can
      be a conviction. -- Di*vis"i*ble*ness, n. --
      Di*vis"i*bly, adv.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Divisible \Di*vis"i*ble\, n.
   A divisible substance. --Glanvill.
   [1913 Webster]

WordNet (r) 3.0 (2006):

divisible
    adj 1: capable of being or liable to be divided or separated;
           "even numbers are divisible by two"; "the Americans
           fought a bloody war to prove that their nation is not
           divisible" [ant: indivisible]

Bouvier's Law Dictionary, Revised 6th Ed (1856):

DIVISIBLE. The susceptibility of being divided.
     2. A contract cannot, in general, be divided in such a manner that an
action may be brought, or a right accrue, on a part of it. 2 Penna. R. 454.
But some contracts are susceptible of division, as when a reversioner sells
a part of the reversion to one man, and a part to another, each shall have
an action for his share of the rent, which may accrue on a contract, to pay
a particular rent to the reversioner. 3 Whart. 404; and see Apportionment.
But when it is to do several things, at several times, an action will lie
upon every default. 15 Pick. R. 409. See 1 Greenl. R. 316; 6 Mass. 344. See
Entire.