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loxodromics

American  
[lok-suh-drom-iks] / ˌlɒk səˈdrɒm ɪks /
Also loxodromy

noun

(used with a singular verb)
  1. the technique of navigating according to loxodromes or rhumb lines.


loxodromics British  
/ lɒkˈsɒdrəmɪ, ˌlɒksəˈdrɒmɪks /

noun

  1. (functioning as singular) the technique of navigating using rhumb lines

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of loxodromics

First recorded in 1670–80; see origin at loxodromic, -ics