bronchus airway bronchiole lung bronchial tube respiratory tract

middle-class

lowborn status wage-earning upper-lower-class proletarian low-class working-class blue-collar propertyless non-U position

move take down incline come down bring down displace depress reef go down dip let down descend fall get down

devalue lour derate subordinate subdue

right field geographical region field of fire rightfield field geographic region battlefield subdivision lot field of honor minefield geographic area diamond playing area parcel of land mine field parade ground parkland common range playing field railyard land site center field industrial park left geographical area left field commons green plot of land patch right baseball diamond clearing grassland oasis glade battleground field of battle park mud flat fairground public square sector infield plot midway fairway plot of ground terrain piece of ground parcel piece of land center picnic area desert grounds breeding ground leftfield outfield picnic ground railway yard athletic field toll plaza short yard site centerfield square

airway system respiratory tract urinary tract

pamphlet treatise

decrease lour turn down minify lessen

white matter pathway radiatio optica cerebral peduncle commissure peduncle nerve tract substantia alba optic radiation nerve pathway