plural of containment line

(firefighting) A linear area which has been cleared of inflammable material in order to prevent a fire from spreading across it.

simple past tense and past participle of contact trace

Third-person singular simple present indicative form of contact trace

(US, slang, originally and chiefly military) Ass (buttocks or anus).

(epidemiology) To identify everyone with whom a person carrying an infectious disease has come into contact since contracting the disease.

(epidemiology) The process of identification of persons ("contacts") who may have come into contact with a person carrying an infectious disease.

present participle of contact trace

Abbreviation of continued.

A style of seating in an auditorium where the individual seats are more widely spaced, eliminating the need for aisles.