Acetabulum (unit)

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In Ancient Roman measurement, the acetabulum was a measure of volume (fluid and dry) equivalent to the Greek ὀξύβαφον. It was one-fourth of the hemina and therefore one-eighth of the sextarius. It contained the weight in water of fifteen Attic drachmae.

Used with some frequency by Pliny the Elder, in a 1952 translation the unit was judged to be equivalent to 63 cubic centimeters.[1] However, other sources estimate a higher value of perhaps 68 cc (see Ancient Roman units of measurement).


  1. ^ W.H. Jones (1954). "Pliny's Natural History (Introduction to Chapter 6)".