sigma particle

sig·ma par·ti·cle

S s

Definition of sigma particle words

noun sigma particle an unstable hyperon having positive, negative, or zero electric charge and strangeness −1. Symbol: Σ. 1

before 1960

One of the 3% newest English words

First recorded in 1960-65

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

This term is known only to a narrow circle of people with rare knowledge. Only 5% of English native speakers know the meaning of this word.

According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

This diagram is provided by Google Ngram Viewer

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