What does "epa" mean?

Initialism of eicosapentaenoic acid.

Epa

Common synonyms include: bitter, e.p.a., eicosapentaenoic acid, environmental protection agency, fbi, federal agency.

name, noun

name, noun ·Rare ·Advanced level

Noun

1
Initialism of eicosapentaenoic acid. abbreviation, alt-of, countable, initialism, uncountable
2
an independent federal agency established to coordinate programs aimed at reducing pollution and protecting the environment wordnet
3
Initialism of English pale ale. abbreviation, alt-of, countable, initialism, uncountable
"I’ve noticed that the chief distinguishing factor between American pale ales and their English counterparts is the hop taste — APAs all seem to finish with a metallic, grapefruit, or pine bitterness (it differs depending on who you talk to), while EPAs mostly seem to finish with a leafy, earthy hop profile that’s less explicitly bitter."
4
Initialism of enduring power of attorney. England, Wales, abbreviation, alt-of, countable, initialism

Proper Noun

1
Initialism of Environmental Protection Agency. US, abbreviation, alt-of, initialism
"First the U.S. had to “show leadership” by promising to cut emissions, many self-styled climate hawks had argued during the debates over cap and trade and the president’s E.P.A. regulations, because then and only then the world’s developing economies would be pressured/shamed/persuaded into following along."

"In September 2013, the Environmental Protection Agency (EPA) announced proposed carbon pollution standards for new power plants."