Obstacle
81obstacle — An existing object, object of natural growth, or terrain at a fixed geographical location, or one that is expected at a fixed location within a prescribed area with reference to which a vertical clearance is or must be provided during flight… …
82obstacle — noun a thing that blocks one s way or hinders progress. Origin ME: via OFr. from L. obstaculum, from obstare impede …
83obstacle — n. Hindrance, obstruction, impediment, difficulty, check, barrier, stumbling block …
84obstacle — n barrier, barricade, obstruction, blockade; stop, stay, impediment, hindrance, check, deterrent, hurdle, stumbling block, block; snag, catch, drawback, liability, hitch, rub, small or little problem, fly in the ointment; dead end, stone wall,… …
85obstacle — ob·sta·cle …
86obstacle — noun Syn: barrier, hurdle, stumbling block, obstruction, bar, block, impediment, hindrance, snag, catch, drawback, hitch, fly in the ointment, handicap, difficulty, problem, disadvantage; Brit. spanner in the works Ant: advantag …
87obstacle — [ˈɒbstək(ə)l] noun [C] 1) a difficulty or problem that prevents you from achieving something Syn: barrier 2) an object that you must remove or go around in order to move forwards Syn: barrier …
88obstacle — ob•sta•cle [[t]ˈɒb stə kəl[/t]] n. something that obstructs or hinders progress • Etymology: 1300–50; ME < OF < L obstāculum, der. of obstā(re) to face, block …
89obstacle — /ˈɒbstəkəl / (say obstuhkuhl) noun something that stands in the way or obstructs progress. {Middle English, from Old French, from Latin obstāculum} …
90obstacle clearing — The total elimination or neutralization of obstacles …
