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# periodic

«periodic» in Mova's school dictionary: **happening again and again, at regular times or now and then** — its meaning for a pupil, its sense in the lessons and examples, with 2 sentences of Mova's corpora that use it.

### part of speech

adjective (periodic; periodically — adverb)

### meaning for a pupil

1) Periodic means happening again and again, at regular times or now and then. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/periodic/#m1)

2) (science) The periodic table is the chart of all the chemical elements in order. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/periodic/#m2)

### sense in the lessons

In science lessons the periodic table lists elements like hydrogen, oxygen and gold. In maths a periodic pattern repeats, like the days of the week or a repeating decimal. In everyday life: periodic checks, periodic visits. Phrases: «periodic table», «periodic checks».

### examples

- The periodic table has more than a hundred elements. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/periodic/#x1)
- We do periodic fire drills at school. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/periodic/#x2)
- The doctor gives the baby periodic check-ups. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/periodic/#x3)
- The tide is periodic: it comes in and goes out. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/periodic/#x4)
- There were periodic showers all day. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/periodic/#x5)
- The pattern 1, 2, 1, 2 is periodic. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/periodic/#x6)
- The car needs periodic servicing. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/periodic/#x7)
- Find gold on the periodic table. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/periodic/#x8)

### note

Stress: peer-ee-OD-ic. Adverb: periodically. In maths a periodic pattern repeats after a fixed number of steps; to find the 20th term, use the repeat length (remainder after division).

### In the corpora

- [The big chart of coloured squares on the science-classroom wall is the periodic table, and every square is one element.](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/2-elements-and-the-periodic-table/1/)
- [Elements in the periodic table are in order of the number of protons in their atoms.](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/2-elements-and-the-periodic-table/7/)

### Trees and pragmatics

[Every meaning and example of «periodic» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/periodic/), each sentence with its dependency tree and frames.