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Original · left

Blood plasma

First in use: the 1800s
Duplicate · right

Plasma (physics)

First in use: c. 1928

Plasma / Blood plasma / Plasma (physics)

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Langmuir borrowed the word from blood.

Which meaning of Plasma is the original, and which one is the duplicate riding on its name? Blood plasma came first (the 1800s). Plasma (physics) arrived in 1928. The data below shows which one owns the word now.

Wikipedia pageviews since 2015

Blood plasmaPlasma (physics)
English Wikipedia pageviews since July 2015 load here.

Duplicate's share of attention

Green line = duplicate's % · above 60 it owns the word · below 40 the original does

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The case for each meaning

Sourced definitions, usage stats and quotes

Original · the 1800s

Blood plasma

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Duplicate · c. 1928

Plasma (physics)

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More duplicated terms

Science & space