| trichromatic | <ornithology, zoology> Having or existing in three different phases of colour; having three distinct colour varieties; said of certain birds and insects. Origin: Pref. Tri- + chromatic. Source: Websters Dictionary (01 Mar 1998) |
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| eulerian coordinates | <radiobiology> Coordinates which are fixed in an inertial reference frame, contrast with Lagrangian Coordinates. See: Eulerian Frame, Lagrangian Frame. (09 Oct 1997) |