ETYM Old Eng. biker; akin to Icel. bikarr, Swed. bägare, Dan. baeger, German becher, Italian bicchiere; -- all from Late Lat. bicarium, prob. from Greek bikos wine jar, or perh. Latin bacar wine vessel. Related to Pitcher a jug.
1. Made of glass or plastic; flat bottomed; used for chemistry.
2. Usually without a handle.