CENTERBOARD
Meaning of CENTERBOARD in English
n.
Pronunciation: ' sen-t ə r- ˌ bo ̇ rd, ' se-n ə r-
Function: noun
Date: 1849
: a retractable keel used especially in sailboats
Merriam Webster Collegiate English Dictionary.
Merriam Webster - Энциклопедический словарь английского языка.
2012