(UK, military, nautical, historical) Of a Royal Navy warship in the Napoleonic Era: having 20–28 guns on one gun deck, a complement of 140–200, and weighing 340–550 tons burthen.

(UK, military, nautical, historical) A fourth-rate ship of the line.

Alternative spelling of sixth-rate

Alternative spelling of sixth-rate

(UK, military, nautical, historical) Of a Royal Navy ship of the line in the Napoleonic Era: having 50–60 guns across two gun decks, a complement of 320–420, and weighing approximately 1,000 tons burthen.

(UK, military, nautical, historical) A sixth-rate warship.

(physiology) The amount of energy expended while at rest in a neutrally temperate environment, in the post-absorptive state.

the air kerma per unit time.

(aviation) An instrument installed in an aircraft that indicates the rate at which the aircraft is gaining or losing altitude.

(computing) The transmission speed of a communications channel; measured in bits or bytes per second.