At Oxford: (plural) The races rowed in Lent term in eight-oared clinker-built open boats: originally designating the boats; later also the crews.

(chiefly at Oxford and Cambridge Universities) a race in which boats start at fixed intervals, the starting places being determined by ‘bumps’…

An instance of rowing over (see to row over at row, v.1 phrasal verbs 5).

plural. A sculling race.

Cambridge University. In plural = May races n. at compounds 1d.

In plural. At Cambridge University: boat races which take place in the Lent term.

A set of four persons or things: esp. A four-oared boat or a crew of four oarsmen. fours, races for four-oared boats.

a race in which the winning boat obtains the right to row in the Lent races.

A race offering the losers of previous heats a second chance to qualify for the final. Cf. earlier to row off at row, v.1

A second or further rowing of a race, etc.

a race in which the competitors use tubs instead of boats.

A bumps race (see bump, n.2 6b) in rowing. Chiefly in plural.

Rowing. Cambridge University and Oxford University colloquial. In plural. Races in which boats start at fixed intervals, the starting places being…

Rowing. A race in which boats are separately timed over the same course; a time trial.