upthrust

up- +‎ thrust

upthrust (countable and uncountable, plural upthrusts)

1. An upward thrust.
2. (nautical) Buoyancy.
3. (geology) An upward movement of part of the Earth's crust.

upthrust (third-person singular simple present upthrusts, present participle upthrusting, simple past and past participle upthrusted)

1. (transitive) To thrust something upwards.
2. (intransitive) To be thrust upwards.

• thruputs