Bothnia Gulf of

Both·ni·a

 (bŏth′nē-ə), Gulf of
An arm of the Baltic Sea between Sweden and Finland. It is icebound for nearly half the year.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.