Complex sentence: "" is the Greek noun for race track, but Virilio takes it to mean the activity of race (Virilio 1977:47) when he coined the term Dromology, which he defined as: the'science (or logic) of speed'.
Split into simpler sentences: is the Greek noun for race track, but Virilio takes it to mean the activity of race (Virilio 1977:47). Meaning: the'science (or logic) of speed'.