baseboard
noun
base·board ˈbās-ˌbȯrd 
: a board situated at or forming the base of something
specifically : a molding covering the joint of a wall and the adjoining floor
Example Sentences
Recent Examples on the Web Gaps along the baseboard where the wall meets the floor and at windows, doors, pipes, fireplace dampers and electrical outlets are all prime spots for drafts. 
Jasmina Burek, The Conversation, 1 Sep. 2022 Mundwiller says baseboards, crown molding and entry doors are suited to satin or higher sheens, because the contrast between a wall and a baseboard, for example, can create an appealing look. Laura Daily, Washington Post, 23 Aug. 2022 Mundwiller said baseboards, crown molding, and entry doors are suited to satin or higher sheens, because the contrast between a wall and a baseboard, for example, can create an appealing look. Laura Daily, BostonGlobe.com, 28 Aug. 2022 And then there was the Gray Room, painted from baseboard to ceiling to recessed light sockets in the perfect shade of gray from Farrow & Ball, Dimpse. Xochitl Gonzalez, ELLE Decor, 21 June 2022 Homes with radiator or baseboard heating, meanwhile, can make use of a ductless mini-split heat pump. BostonGlobe.com, 7 Nov. 2021 Instead of getting onto their hands and knees to spend hours scrubbing their baseboards, Amazon shoppers turn to this extendable baseboard cleaning tool that does the hard work for them. Lily Gray, PEOPLE.com, 7 Oct. 2021 Paper mice, scamper on the risers and along the baseboard. Jody Garlock, Better Homes & Gardens, 23 Sep. 2021 My husband painted the door and some of the baseboard and heater in our front hall. Washington Post, 5 July 2021 See More
Jasmina Burek, The Conversation, 1 Sep. 2022 Mundwiller says baseboards, crown molding and entry doors are suited to satin or higher sheens, because the contrast between a wall and a baseboard, for example, can create an appealing look. Laura Daily, Washington Post, 23 Aug. 2022 Mundwiller said baseboards, crown molding, and entry doors are suited to satin or higher sheens, because the contrast between a wall and a baseboard, for example, can create an appealing look. Laura Daily, BostonGlobe.com, 28 Aug. 2022 And then there was the Gray Room, painted from baseboard to ceiling to recessed light sockets in the perfect shade of gray from Farrow & Ball, Dimpse. Xochitl Gonzalez, ELLE Decor, 21 June 2022 Homes with radiator or baseboard heating, meanwhile, can make use of a ductless mini-split heat pump. BostonGlobe.com, 7 Nov. 2021 Instead of getting onto their hands and knees to spend hours scrubbing their baseboards, Amazon shoppers turn to this extendable baseboard cleaning tool that does the hard work for them. Lily Gray, PEOPLE.com, 7 Oct. 2021 Paper mice, scamper on the risers and along the baseboard. Jody Garlock, Better Homes & Gardens, 23 Sep. 2021 My husband painted the door and some of the baseboard and heater in our front hall. Washington Post, 5 July 2021 See More Word History
First Known Use
1598, in the meaning defined above
Kids Definition
baseboard
noun
base·board ˈbās-ˌbȯrd
: a line of thin boards running along the bottom of the walls of a room