a combining form meaning “early,” “primeval,” used in the formation of compound words:
[ey-oh ip-soh; English ee-oh ip-soh] /ˈeɪ oʊ ˈɪp soʊ; English ˈi oʊ ˈɪp soʊ/
by that very fact.
[ey-oh noh-mi-ne; English ee-oh nom-i-nee] /ˈeɪ oʊ ˈnoʊ mɪˌnɛ; English ˈi oʊ ˈnɒm ɪ ni/
by that name.
early or primeval: Eocene, eohippus
word-forming element used from mid-19c. (first in Eocene) in compound words formed by earth-scientists and meaning “characterized by the earliest appearance of,” from Greek eos “dawn,” from PIE *aus-, cognate with Modern English east (q.v.). Piltdown Man, before exposed as a fraud, was known as Eoanthropus.
Latin ex officio (by virtue of office)
1. ex officio. abbreviation 1. ex officio Latin ex officio (by virtue of office)
end of activity
[ee-oh-an-thruh-puh s, -uh n-throh-puh s] /ˌi oʊˈæn θrə pəs, -ənˈθroʊ pəs/ noun 1. the genus to which the now-discredited Piltdown man was assigned.
1. Executive Office Building. 1. end of block 2. executive office building 3. explanation of benefits