borer

noun
bor·​er | \ ˈbȯr-ər How to pronounce borer (audio) \

Definition of borer

1 : a tool used for boring
b : an insect that bores in the woody parts of plants

Examples of borer in a Sentence

Recent Examples on the Web The only way to actually know the age is by coring, which involves twisting a hollowed hand-drill, known as an increment borer, into the center of the tree in order to extract a sample. Popular Science, "We didn’t track hurricanes hundreds of years ago—but trees did," 16 Oct. 2020 So, crouching on the ground, Davi twists the borer into one of the trunks. Popular Science, "We didn’t track hurricanes hundreds of years ago—but trees did," 16 Oct. 2020 This was the first sighting of the borer in either county. Tim Harlow, Star Tribune, "Emerald ash borer found in Carver, Sibley counties," 6 Oct. 2020 Samuel Ward focused on those data collected since the borer was discovered. Elizabeth Pennisi, Science | AAAS, "A sparkling beetle could spell doom for North America’s ash trees," 23 Sep. 2020 And in North Carolina, researchers at North Carolina State University are beginning a project to monitor the spread of ash borer beetles with drone photography. Theresa Machemer, Smithsonian Magazine, "Invasive Pest Threatens Future of North American Ash Trees," 25 Sep. 2020 Where the borer had taken its toll in the early 2000s, ash seedlings and saplings were thriving, sometimes reaching densities of more than 1200 per hectare within the subsequent decade. Elizabeth Pennisi, Science | AAAS, "A sparkling beetle could spell doom for North America’s ash trees," 23 Sep. 2020 My bet would be that the trunk has borer tunnels in it already. Neil Sperry, ExpressNews.com, "Neil Sperry: Dead agapanthus? Don’t feel guilty, just move on," 3 Sep. 2020 There are huge thriving oaks there, and large pines as well, and also lots of ash tree skeletons, because the emerald green ash borer has recently decimated this tree tribe. Susan Krawitz, Longreads, "Finding Signs of Hope in Surprise Sugar Maples," 10 Aug. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'borer.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of borer

14th century, in the meaning defined at sense 1

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The first known use of borer was in the 14th century

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Last Updated

13 Nov 2020

Cite this Entry

“Borer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/borer. Accessed 23 Nov. 2020.

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More Definitions for borer

borer

noun
How to pronounce borer (audio)

English Language Learners Definition of borer

: an insect that digs holes in the woody parts of plants

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