(aviation) An extremely dangerous type of aerodynamic stall (sudden loss of lift caused by airflow separation) where the angle of attack of a T-tailled aircraft becomes so high that the horizontal stabilizer and elevators are blanketed by the turbulent wake of the main wings, rendering the stabilizer and elevators ineffective and often preventing recovery from the stall.

Used other than figuratively or idiomatically: see deep, dive. / (idiomatic, often with into or on) An in-depth examination or analysis of a topic.

plural of deep cut

present participle of deep clean

plural of deep clean

Third-person singular simple present indicative form of deep clean

Any thorough cleansing, especially one conducted in order to disinfect a place that has or may have been contaminated with a disease vector such as a virus, bacteria, etc.

To conduct a deep clean.

A deep in Tonga Trench, Pacific Ocean; the second deepest place on Earth, and deepest part of the Tonga Trench.

Former name of Sirena Deep.: A deep in Mariana Trench, Pacific; second deepest place in the Mariana Trench, and third deepest place on Earth.