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from Greek, literally e psilon "bare -e-, -e- and nothing else," in contradistinction to the diphthong -ai-, which has the same sound. Greek psilon "smooth, simple" is of uncertain origin.
The Greek letter epsilon. Entries beginning with this character are alphabetized under epsilon.
The symbol for molar absorption coefficient.
epsilon ep·si·lon (ěp'sə-lŏn', -lən)
Symbol ε The fifth letter of the Greek alphabet.
The fifth in a series.
Of or relating to the fifth member of a particular ordered set.
Relating to or characterizing a polypeptide chain that is one of five types of heavy chains present in immunoglobins.