Acce'nsion. n.s. [accensio, Lat.] The act of kindling, or the state of being kindled.
The fulminating damp will take fire at a candle, or other flame, and, upon its accension, gives a crack or report, like the discharge of a gun, and makes likewise an explosion so forcible as sometimes to kill the miners, break their limbs, shake the earth, and force coals, stones, and other bodies, even though they be of very great weight and bulk, from the bottom of the pit or mine. Woodward's Natural History, p. iv.