periodic

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

1. happening or recurring at regular intervals (Freq. 5)
- the periodic appearance of the seventeen-year locust
• Syn:
periodical
• Ant:
aperiodic
• Similar to:
cyclic, oscillatory, oscillating, diurnal, daily,
day-to-day, day-by-day, day-after-day, nightly, weekly, hebdomadal,
hebdomadary, semiweekly, biweekly, hourly, half-hourly, fortnightly,
annual, yearly, semiannual, biannual, biyearly, half-yearly,
biennial, triennial, monthly, bimonthly, bimestrial, semimonthly,
semestral, semestrial, midweekly
• Derivationally related forms:
periodical (for: periodical), period (for: periodical), periodicity
2. recurring or reappearing from time to time
- periodic feelings of anxiety
• Syn:
occasional
• Similar to:
sporadic

• Từ đồng nghĩa / Synonyms:
  occasional, periodical
• Từ trái nghĩa / Antonyms:
  aperiodic, nonperiodic