in·ter·reg·num 
(ĭn′tər-rĕgnəm)
(ĭn′tər-rĕgnəm)n. pl. in·ter·reg·nums or in·ter·reg·na (-nə)
1. The interval of time between the end of a sovereign's reign and the accession of a successor.
2. A period of temporary suspension of the usual functions of government or control.
3. A gap in continuity.
[Latin : inter-, inter- + rēgnum, reign; see REIGN.]
in′ter·regnal (-nəl) adj.
- exemplariness
- exemplarity
- exemplary
- exemplifiable
- exemplification
- exemplifier
- exemplify
- exempli gratia
- exemplum
- exempt
- exemptible
- exemption
- exenatide
- exenterate
- exenteration
- exercisable
- exercise
- exercise ball
- exercise bicycle
- exercise book
- exercise physiology
- exerciser
- exercitation
- exergonic
- exergue