far+off

  • 131far boundary — The maximum range at which a missile can destroy or hit a target. The burnout range, the missile maneuver capability, and the angle off are some of the parameters that decide the far boundary of a missile. See also near boundary …

    Aviation dictionary

  • 132off the top of my head — Head Head (h[e^]d), n. [OE. hed, heved, heaved, AS. he[ a]fod; akin to D. hoofd, OHG. houbit, G. haupt, Icel. h[ o]fu[eth], Sw. hufvud, Dan. hoved, Goth. haubi[thorn]. The word does not correspond regularly to L. caput head (cf. E. {Chief},… …

    The Collaborative International Dictionary of English