periscope

from WordNet (r) 3.0 (2006)
periscope
    n 1: an optical instrument that provides a view of an otherwise
         obstructed field
from The Collaborative International Dictionary of English v.0.48
Periscope \Per"i*scope\, n. [Pref. peri- + -scope.]
   A general or comprehensive view. [archaic]
   [1913 Webster]

   2. An optical instrument of tubular shape containing an
      arrangement of lenses and mirrors (or prisms), allowing a
      person to observe a field of view otherwise obstructed, as
      beyond an obstructing object or (as in submarines) above
      the surface of the water.
      [PJC]
from Moby Thesaurus II by Grady Ward, 1.0
19 Moby Thesaurus words for "periscope":
      Aqua-Lung, air cylinder, aquascope, bathyscaphe, bathysphere,
      benthoscope, diving bell, diving boat, diving chamber,
      diving goggles, diving helmet, diving hood, diving mask,
      diving suit, scuba, snorkel, submarine, swim fins, wet suit
antiflux / dictionary / periscope
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