What does t stand for?

Transmitter

In electronics and telecommunications a transmitter or radio transmitter is an electronic device which produces radio waves with an antenna.

Time

Mode by which is measured the passage of events. A measure of duration. In navigation, all time is measured by hour angle of a specific body or point, and is based on diurnal rotation of Earth, monthly revolution of Moon around Earth, the annual revolution of Earth round Sun.

Tango

Thermostat

Device, which senses ambient temperature, conditions and, in turn, acts to control a circuit. A device which relegates the temperature of a room or building by switching heating or cooling equipment on or off. Circuit that indicates whether a measured temperature is above or below a particular temperature threshold or trip point. Used for thermal protection and simple temperature control systems.

Topology

In ECDIS and digital data, the set of properties of geometric forms (such as connectivity, neighborhood) which is defined with the DATA MODEL remaining invariant when subject to a continuous transformation.

Torpedo

Fish that kills its prey by making physical contact and discharging electricity Varies in weight between 20 and 100 Ib Its electrical shock can kill a human being. Name formerly given to a submarine mine or any container of explosive fired, above or below water, when alongside an enemy vessel.

Tipper

Tread

The length of a vessel's keel.

Trough

High-temperature (180+) concentrator with one axis-tracking. OR Elongated area of low atmospheric pressure, either at the surface or in the upper atmosphere.

Tetraploid