midchannel

From mid- +‎ channel.

midchannel (not comparable)

1. (geography, navigation) In the middle of a channel.
   • 1925 July – 1926 May, A[rthur] Conan Doyle, “(please specify the chapter number)”, in The Land of Mist (eBook no. 0601351h.html), Australia: Project Gutenberg Australia, published April 2019:

     Far out the great ships were keeping mid-channel as scenting danger to come.