Definition from Wiktionary, the free dictionary
- (countable) A two handled jar with a narrow neck that was used in ancient times to store or carry wine or oils.
a two handled jar with a narrow neck
See also 
From Ancient Greek ἀμφορεύς (amphoreus, “vased shaped ornament with a narrow neck”).
- A vessel, usually made of clay, with two handles or ears for liquids; amphora; flagon, pitcher, flask, bottle, jar.
- A measure for liquids; quadrantal; the measure of a ship.