MAINSAIL
Meaning of MAINSAIL in English
/mayn"sayl'/ ; Naut. /mayn"seuhl/ , n. Naut.
the lowermost sail on a mainmast. See diag. under ship .
[ 1425-75; late ME; see MAIN 1 , SAIL ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012