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Definitions from WordNet

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Promethium

Description:

Promethium is a chemical element with the symbol Pm and atomic number 61. It belongs to the lanthanide series of the periodic table. Promethium is a highly radioactive element and is never found in nature, but it can be artificially created.

Senses:

Sense 1 - Noun:

In the context of chemistry, promethium refers to the chemical element with atomic number 61, symbol Pm.

Example sentence: Promethium has various medical and industrial applications due to its unique properties.

Sense 2 - Adjective:

When used as an adjective, promethium describes something related to or derived from promethium.

Example sentence: The scientist conducted experiments using promethium isotopes.

Local Usage:

In local usage, promethium may refer to a specific local business, event, or landmark.

Example sentence: The annual promethium festival in our town attracts visitors from all over the region.