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.