Ornamental things have no practical function but are put in a place because they look attractive.
例句
...ornamental trees.观赏树
ADJ-GRADED
装饰性的;美观的
Something that is ornamental is attractive and decorative.
例句
...ornamental plaster mouldings.装饰性石膏线脚
英汉词典释义
adj.
装饰的,装饰用的
ornamental beds of roses观赏用玫瑰花坛The ornamental ironwork lends a touch of elegance to the house.铁艺饰件为房子略添雅致。The stream was dammed up to form ornamental lakes.溪流用水坝拦挡起来,形成了装饰性的湖泊。
英英词典释义
Noun
1. any plant grown for its beauty or ornamental value
Adjective
1. serving an esthetic rather than a useful purpose;
"cosmetic fenders on cars""the buildings were utilitarian rather than decorative"