The pressure exerted by the blood against the walls of the arteries and veins; it varies during the heartbeat cycle, and according to a person's age, health and physical condition.

atmospheric pressure or barometric pressure. / the (amount of) pressure of air within something

(US, Canada) the pressure of the air in a vehicle tire

Inducement or influence by one's peers.

To induce or influence (one's peers).

(physics) The pressure exerted by electromagnetic radiation on an object on which it impinges, as a consequence of its momentum.

The opposite of high-pressure, defined by contrast.

The rate of decrease (gradient) of pressure in space at a fixed time. The term is sometimes used to denote simply the magnitude of the gradient of the pressure field.

(physics) The pressure that a vapor exerts, or the partial pressure if it is mixed with other gases.

The pressure (the result of osmosis) exerted by the roots of vascular plants that moves water into the leaves and causes guttation.