'High-pressure' definitions:

Definition of 'high-pressure'

adjective

Aggressively and persistently persuasive; "a hard-hitting advertising campaign"; "a high-pressure salesman" [syn: hard-hitting, high-pressure]

From: GCIDE

High-pressure \High"-pres`sure\ (?; 135), a.
1. Having or involving a pressure greatly exceeding that of the atmosphere; -- said of steam, air, water, etc., and of steam, air, or hydraulic engines, water wheels, etc. [1913 Webster]
2. Fig.: Urgent; intense; as, a high-pressure business or social life. [1913 Webster]
3. Using intense psychological pressure or other incentives to convince others to do things; aggressively persistent; as, high-pressure salesmen; high-pressure tactics. [PJC]
High-pressure engine, an engine in which steam at high pressure is used. It may be either a condensing or a noncondensing engine. Formerly the term was used only of the latter. See Steam engine. [1913 Webster]