Source : Webster's Revised Unabridged Dictionary (1913)

Enrollment \En*roll"ment\, n. [Cf. F. enr[^o]lement.] [Written
   also {enrolment}.]
   1. The act of enrolling; registration. --Holland.

   2. A writing in which anything is enrolled; a register; a
      record. --Sir J. Davies.

Source : WordNet®

enrollment
     n 1: the act of enrolling [syn: {registration}, {enrolment}]
     2: the body of people (such as students) who register or enroll
        at the same time [syn: {registration}]