What is "updraught"

Usage examples of "updraught".

Zzhrrk would ride the updraught so that he maintained a position directly above his master for hours at a time, wings outstretched, only his head moving from side to side, alert for other cowbirds gliding nearby.

The sand was fine as dust where it spun and swirled on updraughts at the base of the cliff.

Haniver swinging above it like a low-budget moon, scorched and listing, veering drunkenly in the updraughts from the burning buildings.

Fanned by a constant updraught of ventilation between the kitchen and the chimneyflue, ignition was communicated from the faggots of precombustible fuel to polyhedral masses of bituminous coal, containing in compressed mineral form the foliated fossilised decidua of primeval forests which had in turn derived their vegetative existence from the sun, primal source of heat (radiant), transmitted through omnipresent luminiferous diathermanous ether.

Then suddenly she felt the cracking weight of water on her ribs releasing, felt her lungs swelling in her chest, and an updraught of air and bubbles from the ruptured hull picked her up like a spark from a campfire and hurled her towards the surface with the pressure pain burning in her eardrums, and the drag of the life-jacket cutting into her armpits.

The River Red Gum has heavy twisting branches and a spreading open crown and once the fire reaches the canopy the updraughts and the convection current created by the fire has plenty of space to move through.