Definition/Meaning | Word/Phrase |
---|---|

radar that will report altitude as well as azimuth and distance of a target | 3d radar , three-dimensional radar |

(astronomy) the magnitude that a star would have if it were viewed from a distance of 10 parsecs (32.62 light years) from the earth | absolute magnitude |

trapped air that supports a hovercraft a short distance above the water or ground | air cushion |

unit of length used in navigation; equivalent to the distance spanned by one minute of arc in latitude; 1,852 meters | air mile , international nautical mile , knot , mi , mile , nautical mile , naut mi |

distance oneself from an attachment, especially through hostile actions | alienate |

angular distance above the horizon (especially of a celestial object) | ALT , altitude , EL , elevation |

perpendicular distance from the base of a geometric figure to opposite vertex (or side if parallel) | altitude |

product of the momentum of a rotating body and its distance from the axis of rotation | angular momentum |

(astronomy) position of a planet as defined by its angular distance from its perihelion (as observed from the sun) | anomaly |

apoapsis in solar orbit; the point in the orbit of a planet or comet that is at the greatest distance from the sun | aphelion |

apoapsis in Earth orbit; the point in its orbit where a satellite is at the greatest distance from the Earth | apogee |

unit of angular distance equal to a 60th of a degree | arcminute , minute , minute of arc |

distance sufficient to exclude intimacy | arm's length |

unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun (approximately 93 million miles or 150 million kilometers) | Astronomical Unit , AU |

angular distance from a reference direction | azimuth |

fire (usually on a hill or tower) that can be seen from a distance | beacon , beacon fire |

situation or topic as if viewed from an altitude or distance | bird's eye view , panoramic view |

instrument for measuring the distance between two points (often used in the plural) | caliper , calliper |

small chiefly ground dweller that stays within easy jumping distance of water; of United States southwest and northern Mexico | canyon treefrog , Hyla arenicolor |

one of the coordinates in a system of coordinates that locates a point on a plane or in space by its distance from two lines or three planes respectively; the two lines or the intersections of the three planes are the coordinate axes | Cartesian coordinate |

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