[peer-ee-od-ik] /ˌpɪər iˈɒd ɪk/
recurring at intervals of time:
periodic revivals of an interest in handicrafts.
occurring or appearing at regular intervals:
periodic visits by doctors to the village.
repeated at irregular intervals; intermittent:
periodic outbreaks of the disease.
Physics. recurring at equal intervals of time.
Mathematics. (of a function) having a graph that repeats after a fixed interval (period) of the independent variable.
pertaining to or characterized by rhetorical periods, or periodic sentences.
happening or recurring at intervals; intermittent
of, relating to, or resembling a period
having or occurring in repeated periods or cycles
1640s, from French périodique (14c.), from Latin periodicus, from periodus (see period).
Periodic table in chemistry (1889) is from notion of the arrangement, in which similar properties recur at intervals in elements in the same area as you read down the rows of the table. This sense of the word is attested from 1872 (periodic law).
periodic pe·ri·od·ic (pĭr’ē-ŏd’ĭk)
- Periodic attractor
periodic attractor (pîr’ē-ŏd’ĭk) See under attractor.
[peer-ee-od-ik, peer-] /ˈpɪər iˈɒd ɪk, ˌpɪər-/ noun, Mathematics. 1. .
- Periodic disease
periodic disease pe·ri·od·ic disease (pĭr’ē0ŏd’ĭk) n. A disease for which symptoms tend to recur at regular intervals.
[peer-ee-od-ik, peer-] /ˈpɪər iˈɒd ɪk, ˌpɪər-/ noun, Mathematics. 1. a function of a real or complex variable that is periodic. /ˌpɪərɪˈɒdɪk/ noun 1. (maths) a function, such as sin x, whose value is repeated at constant intervals