T

Alphabetical index

tera

Prefix for a multiple of 10¹², symbol: T.

tesla

Unit of measurement of magnetic flux density, symbol: T.

thousands marker

In view of the difference in practice in the common use of the decimal marker between the UK and certain other countries, use a space (not a comma) as a thousands marker.

e.g. 10 000 kg  not 10,000 kg

This may be omitted if there are only four digits e.g. 1000 metres.

tonne

Unit of measurement of mass (or weight) equal to 1000 kg, symbol: t.

trillion

1000 billion, or 10¹². The value of the prefix “tera”.