period /pēˈri-əd/

1. A stretch of time
2. A long stretch, an age
3. One of the main divisions of geological time
4. A stage or phase in history, in a person's life and development, in a disease, or in any course of events
5. A time
6. A division of the school day, the time of one lesson
7. The end of a course
8. A recurring time
9. The menstrual discharge or the time when it occurs
10. The time in which anything runs its course
11. An interval of time at the end of which events recur in the same order
12. The time required for a complete oscillation, reciprocal of the frequency
13. The time of a complete revolution of a heavenly body about its primary
14. The difference between two successive values of a variable for which a function has the same value (mathematics)
15. The recurring part of a circulating decimal (mathematics)
16. A set of figures (usu three) in a large number marked off eg by commas
17. A series of chemical elements represented in a horizontal row of the periodic table
18. An end (rare)
19. A goal (archaic)
20. A complete sentence, esp one of elaborate construction
21. A division analogous to a sentence (music)
22. (in pl) rounded rolling rhetoric
23. A mark (.) at the end of a sentence, a full stop (the word is sometimes added at the end of a sentence to emphasize the finality of the statement)
24. A rhythmical division in Greek verse

(of eg architecture, furniture or a play) characteristic, representative, imitative of, belonging to or dealing with a past period

To put an end to

periodic /pēr-i-odˈik/ adjective

1. Relating to a period or periods
2. Of revolution in an orbit
3. Having a period
4. Recurring regularly in the same order
5. (loosely) occurring from time to time
6. Characterized by or constructed in periods
7. Relating to the periodic table
8. Relating to periodicals (rare)

periodˈical adjective

1. Periodic
2. Published in numbers at more or less regular intervals
3. Of, for, or in such publications

A magazine or other publication that appears at stated intervals (not usu including newspapers)

periodˈicalist noun

A person who writes in a periodical

periodˈically adverb

1. At regular intervals
2. In a periodic manner
3. In a periodical publication
4. (loosely) from time to time

periodicity /-disˈ/ noun

1. The fact or character of being periodic
2. Frequency

• unhearted
• unhearting
• unhearts
• unheated
• unhedged
• unheeded
• unheededly
• unheedful
• unheedfully
• unheedily
• unheeding
• unheedingly
• unheedy
• unhele
• unheled
• unheles
• unheling
• unhelm
• unhelmed
• unhelmeted
• unhelming
• unhelms
• unhelpable
• unhelped
• unhelpful