Dictionary.net

• An incident; that which is incidental; esp., in the plural, an aggregate of subordinate or incidental items not particularized; as, the expense of tuition and incidentals.

2010 - New Age Dictionary Database
By Oddity Software

• An incident; that which is incidental; esp., in the plural, an aggregate of subordinate or incidental items not particularized; as, the expense of tuition and incidentals.

1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.