tubing
noun
tub·ing ˈtü-biŋ 
ˈtyü-
1
: material in the form of a tube
also : a length or piece of tube
2
: a series or system of tubes
3
: the sport or activity of riding an inner tube (as down a river or snowy slope)
Example Sentences
The fluids travel through flexible plastic tubing. We go tubing on the river every summer.
Recent Examples on the Web But the park has broadened its appeal beyond seasoned water sports enthusiasts, seeking to bring in families with an Aquapark, tubing, a dockside grill and lessons for children. 
Patrick Connolly, Orlando Sentinel, 28 Aug. 2022 Children of the ‘80s likely peeled themselves off of the plastic tubing of a folding lounge chair, the kind that required folding and refolding the two ends to achieve the perfect head-prop. Sunset Magazine, 14 June 2022 Inner tubing in particular has become so popular that new rental companies are popping up to meet demand. Rachel Ehly And Gabriella Wong, oregonlive, 8 Aug. 2022 Families can take a trip up the River Run Gondola to access the same tubing hill that operates during the winter. Karen Cicero, Good Housekeeping, 19 May 2022 Brandywine has been unable to open its snow tubing park this year because of staffing woes. Susan Glaser, cleveland, 3 Feb. 2022 The Apple River in Somerset, Wisconsin – a town about 35 miles outside of Minneapolis – is a popular for tubing and camping in the area. Cady Stanton, USA TODAY, 31 July 2022 The Apple River is a popular destination for tubing and camping. Meredith Deliso, ABC News, 30 July 2022 Founded in 1917 as The Timken Roller Bearing Company, TimkenSteel is a leading producer of carbon steel, alloy and micro-alloy steel in specialty bars, mechanical tubing and other products used in the automotive, industrial and energy markets. Laura Hancock, cleveland, 22 June 2022 See More
Patrick Connolly, Orlando Sentinel, 28 Aug. 2022 Children of the ‘80s likely peeled themselves off of the plastic tubing of a folding lounge chair, the kind that required folding and refolding the two ends to achieve the perfect head-prop. Sunset Magazine, 14 June 2022 Inner tubing in particular has become so popular that new rental companies are popping up to meet demand. Rachel Ehly And Gabriella Wong, oregonlive, 8 Aug. 2022 Families can take a trip up the River Run Gondola to access the same tubing hill that operates during the winter. Karen Cicero, Good Housekeeping, 19 May 2022 Brandywine has been unable to open its snow tubing park this year because of staffing woes. Susan Glaser, cleveland, 3 Feb. 2022 The Apple River in Somerset, Wisconsin – a town about 35 miles outside of Minneapolis – is a popular for tubing and camping in the area. Cady Stanton, USA TODAY, 31 July 2022 The Apple River is a popular destination for tubing and camping. Meredith Deliso, ABC News, 30 July 2022 Founded in 1917 as The Timken Roller Bearing Company, TimkenSteel is a leading producer of carbon steel, alloy and micro-alloy steel in specialty bars, mechanical tubing and other products used in the automotive, industrial and energy markets. Laura Hancock, cleveland, 22 June 2022 See More Word History
First Known Use
1845, in the meaning defined at sense 1