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# gamma

«gamma» in Mova's school dictionary: **the third letter of the Greek alphabet, written γ (small)…** — its meaning for a pupil, its sense in the lessons and examples, with 1 sentence of Mova's corpora that use it.

### part of speech

noun (gamma, gammas)

### meaning for a pupil

1) Gamma is the third letter of the Greek alphabet, written γ (small) and Γ (capital), after alpha and beta. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gamma/#m1)

2) (science) Gamma rays are very powerful, invisible rays given off by radioactive materials and by explosions in space; they can harm living things. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gamma/#m2)

3) Gamma is used as a label for the third thing in a list, after alpha and beta. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gamma/#m3)

### sense in the lessons

In maths and science it can stand for an angle or a value; in science lessons about light and radiation gamma rays come at the high-energy end of the electromagnetic spectrum. Phrases: «gamma rays», «alpha, beta and gamma».

### examples

- Gamma is the third letter of the Greek alphabet. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gamma/#x1)
- Alpha, beta, gamma, delta. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gamma/#x2)
- Gamma rays are stronger than X-rays. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gamma/#x3)
- Hospitals use gamma rays to kill germs on equipment. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gamma/#x4)
- In the comic, the hero was hit by gamma rays. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gamma/#x5)
- We labelled the third angle gamma. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gamma/#x6)
- Thick lead blocks stop gamma rays. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gamma/#x7)
- Gamma rays come from exploding stars. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gamma/#x8)

### note

Say «GAM-uh». The word «alphabet» comes from alpha and beta. Comic stories about gamma rays giving superpowers are fiction; real gamma rays are dangerous.

### In the corpora

- [X-ray and gamma-ray telescopes have to work in space, because Earth's atmosphere blocks those rays.](https://md.mova.elamur.ai/free/en/corpora/school/space/27-telescopes-and-light/15/)

### Trees and pragmatics

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