period
noun
[ ˈpɪərɪəd ]
• a length or portion of time.
• "he had long periods of depression"
Similar:
time,
spell,
interval,
stretch,
term,
span,
phase,
session,
bout,
run,
space,
duration,
chapter,
stage,
while,
patch,
• the interval of time between successive occurrences of the same state in an oscillatory or cyclic phenomenon, such as a mechanical vibration, an alternating current, a variable star, or an electromagnetic wave.
• a flow of blood and other material from the lining of the uterus, occurring in non-pregnant women at intervals of about 28 days between puberty and the menopause and typically lasting for a few days.
• "she's got her period"
• a punctuation mark (.) used at the end of a sentence or an abbreviation; a full stop.
• a set of elements occupying a horizontal row in the periodic table.
• a complex sentence, especially one consisting of several clauses, constructed as part of a formal speech or oration.
period
adjective
• belonging to or characteristic of a past historical time, especially in style or design.
• "an attractive and beautifully modernized period house"
Origin:
late Middle English (denoting the time during which something, especially a disease, runs its course): from Old French periode, via Latin from Greek periodos ‘orbit, recurrence, course’, from peri- ‘around’ + hodos ‘way, course’. The sense ‘portion of time’ dates from the early 17th century.