different between occasional vs periodic

English

Etymology

occasion +? -al

Pronunciation

• IPA^(key): /??ke??(?)n?l/
• Hyphenation: oc?ca?sion?al

Adjective

occasional (not comparable)

1. Occurring or appearing irregularly from time to time, but not often.

2. Created for a specific occasion.

3. Intended for use as the occasion requires.

4. Acting in the indicated role from time to time.

Derived terms

Translations

Noun

occasional (plural occasionals)

1. A person who does something only occasionally.

References

• occasional at OneLook Dictionary Search
• occasional in The Century Dictionary, New York, N.Y.: The Century Co., 1911.

English

Alternative forms

• periodick (obsolete)

Etymology 1

From French périodique, from Medieval Latin periodicus (“cyclical”), from Latin periodus (“complete sentence, period, circuit”), from Ancient Greek ???????? (períodos, “cycle, period of time”).

Pronunciation

• (Received Pronunciation) IPA^(key): /?p??i??d?k/, /?p??-/
• (General American) IPA^(key): /?p??i??d?k/
• Rhymes: -?d?k
• Hyphenation: pe?ri?od?ic

Adjective

periodic (not comparable)

1. Relative to a period or periods.
2. Having repeated cycles.

   Synonym: cyclic

3. Occurring at regular intervals.

   Synonyms: cyclic; see also Thesaurus:periodic

4. Periodical.
5. (astronomy) Pertaining to the revolution of a celestial object in its orbit.

   Antonym: non-periodic

6. (mathematics, stochastic processes, of a state) For which any return to it must occur in multiples of ${\displaystyle k}$ time steps, for some ${\displaystyle k>1}$.

   Antonym: aperiodic

7. (rhetoric) Having a structure characterized by periodic sentences.

Derived terms

Related terms

Translations

Etymology 2

From per- +? iodic.

Pronunciation

• enPR: "pûr??d'?k, IPA^(key): /?p???a???d?k/

Adjective

periodic (not comparable)

1. Relating to the highest oxidation state of iodine; of or derived from a periodic acid.

Derived terms

Anagrams

• poricide

Ladin

Adjective

periodic m pl

1. plural of periodich