NECKAR Meaning of NECKAR in English /nek"euhr/ ; Ger. /ne"kahrdd/ , n.a river in SW Germany, flowing N and NE from the Black Forest, then W to the Rhine River. 246 mi. (395 km) long. Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012