vernier vernier /ˈvɝːniːɝ/

noun

1. A small movable scale that slides along a main scale; the small scale is calibrated to indicate fractional divisions of the main scale  ( vernier , vernier scale )
   a small movable scale that slides along a main scale; the small scale is calibrated to indicate fractional divisions of the main scale
   
   

 Vernier

1. French mathematician who described the vernier scale (1580-1637)  ( Paul Vernier , Vernier , Pierre Vernier )
   French mathematician who described the vernier scale (1580-1637)
   

 myxomatosis myxomatosis /ˌmɪksəməˈtoʊsɪs/

noun

1. A viral disease (usually fatal) of rabbits  ( myxomatosis )
   a viral disease (usually fatal) of rabbits
    The rabbit population was drastically affected by the outbreak of myxomatosis.
   The rabbit population was drastically affected by the outbreak of myxomatosis.
   
   

 Rocky Mountains Rocky Mountains /ˈrɑki ˈmaʊntɪnz/

noun

1. The chief mountain range of western North America; extends from British Columbia to northern New Mexico; forms the continental divide  ( Rockies , Rocky Mountains )
   the chief mountain range of western North America; extends from British Columbia to northern New Mexico; forms the continental divide
    The Rocky Mountains are a popular destination for hikers and outdoor enthusiasts, with hundreds of miles of trails and stunning vistas
   The Rocky Mountains are a popular destination for hikers and outdoor enthusiasts, with hundreds of miles of trails and stunning vistas
   
   

 Mensa Mensa /ˈmɛnsə/

noun

1. A faint constellation in the polar region of the Southern Hemisphere and containing part of the Large Magellanic Cloud  ( Mensa )
   a faint constellation in the polar region of the Southern Hemisphere and containing part of the Large Magellanic Cloud
    Amateur astronomers often find it challenging to locate the Mensa constellation.
   Amateur astronomers often find it challenging to locate the Mensa constellation.