thallium
A metallic chemical element (symbol ) with atomic number 81: a gray post-transition metal that discolors when exposed to air.
Other meanings
A single atom of this element.
A kind of
- metallic element
Related words
- dithallium
- nonthallium
- organothallium
- radiothallium
- thalloan
- trithallium
- eka-thallium
- thallane
- thallic
- thalliferous
- thallious
- thallium-activated
Word history
From Ancient Greek "θαλλός" (green branch).
Where this comes from
This definition is adapted from “thallium” on Wiktionary, by its contributors; related-word lists use Open English WordNet (CC BY 4.0, based on Princeton WordNet), published under CC BY-SA 4.0. This page is published under the same licence.