A two-dimensional representation of a three-dimensional organic molecule by projection, used mainly in organic chemistry and biochemistry.

(tennis) With each player or pairing having won the same number of games as they have served.

A sieve, especially a long fine sieve used in milling for bolting flour and meal; a bolter.

(anatomy) A major vessel of the lymphatic system that originates in the abdomen and drains into the blood circulation at the commencement of the left brachiocephalic vein.