radon

CEFRB2

/ˈɹeɪdɒn/

noun

Türkçe translations

Translating…

In plain English

  1. 01

    noun

    A radioactive gas that can collect inside buildings.

  2. 02

    noun

    Extra detail

    A surname from German.

Examples

  • Helium, neon, argon, krypton, xenon and radon are noble gases.

  • Several measurements show high radon levels in this area.

At a glance

Sits at B2 on the CEFR scale

Senses
4
Parts of speech
1

Deep Dive

noun

Extra meanings

  1. Radon-222 (22286Rn), the most stable isotope of said element.

  2. The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas.

Quick test

Two questions on this entry. Nothing is scored.

Question 1 · Quick check

The basement had high levels of blank gas, which can cause lung cancer.

Practise this properly in the app, where the word comes back before you forget it.

Nearby

Origin

noun

Contraction of radium emanation, since the element appears in the radioactive decay of radium. By surface analysis, radio- + -on (“suffix for noble gases”).