panopticon		a prison constructed so that all parts are visible from a single point.
glabella		the point between the eyebrows.
quaquaversal		sloping downward in all directions.
zugzwang		(chess) a position in which all moves are detrimental.
linn		(Scot.) a torrent or waterfall; a pool of water, esp. one at the base of a waterfall; a precipice.
dalles		rapids running in a gorge or canyon.
swallet		(Brit.) an underground stream; an opening through which a stream enters the ground.
infundibuliform		funnel-shaped.
cuniculus		a small burrow or tunnel.
anfractuous		full of twists and turns.
white damp		a poisonous gas in coal mines, mostly carbon monoxide.