(n) a firebreak
(n) Arctic Circle (latitude)
(n) wireless
radio
(n) radio station
(n) guard (against attack)
(n) anode rays
(n) proton beam
(n) helicoid
(n) (comp) flowline
(n) streamlined
(n) streamlined
(n) particle beam
(exp) more or less right
you are on the right track
getting warm
(n) territorial limits
(n) harbor railroad
harbour railroad
(n) outline
contour line
border line
(n) connecting line
(n) route map (buses and trains, etc.)
(n) parabola
(n) radiation
radiant rays
(n) (obs) feeder
(n) bisector
(n) x-ray photography
(n) chart
(n) (comp) twisted pair cable
(n) ground (earth) wire
earthed line
(n,adj-no) gamma rays
(n) sheathing wire
(n) piano wire
(n) (comp) lead
