Designator

des·ig·nate  (dzg-nt)

tr.v. des·ig·nat·ed, des·ig·nat·ing, des·ig·nates

1. To indicate or specify; point out.

2. To give a name or title to; characterize.

3. To select and set aside for a duty, an office, or a purpose. See Synonyms at allocate, appoint.

adj. (-nt)

Appointed but not yet installed in office: the commissioner designate.

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[Latin dsignre, dsignt- : d-, de- + signre, to mark (from signum, sign; see sek^w-¹ in Indo-European roots).]

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desig·native, desig·na·tory (-n-tôr) adj.

desig·nator n.