\ˈnōd \

Definition of node 

1a : a pathological swelling or enlargement (as of a rheumatic joint)

b : a discrete mass of one kind of tissue enclosed in tissue of a different kind

2 : an entangling complication (as in a drama) : predicament

3 : either of the two points where the orbit of a planet or comet intersects the ecliptic also : either of the points at which the orbit of an earth satellite crosses the plane of the equator

4a : a point, line, or surface of a vibrating body or system that is free or relatively free from vibratory motion

b : a point at which a wave has an amplitude of zero

5a : a point at which subsidiary parts originate or center

b : a point on a stem at which a leaf or leaves are inserted

c : a point at which a curve intersects itself in such a manner that the branches have different tangents

d : vertex sense 1b

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Synonyms for node


bump, knot, lump, nodule, swelling

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Examples of node in a Sentence

the doctor examined the node on my knee before deciding it was the result of arthritis

Recent Examples on the Web

When there are two flowers left, cut it below the first flower or above the top node. Karen Ridder, kansascity, "Caring for elegant orchids (and carnivorous plants) isn’t as hard as you think," 7 June 2018 My doctor showed me how the cancerous node on my thyroid already had some calcification on it where the cancer had done some damage. Jennifer Williams, Fox News, "The Daily Spike: The power of a dog during recovery," 1 June 2018 Autonomous shuttles help to limit the number of vehicles and provide a last mile connector to other transit nodes in the area, Mr. Barker added. Esther Fung, WSJ, "City Planners, Property Developers Fuel Push for Driverless Vehicles," 29 May 2018 Strong spending in memory and process-node upgrades at the major chip makers are also fueling increased spending on equipment. Dan Gallagher, WSJ, "Chip-Equipment Makers in Crosshairs of Trade War," 25 June 2018 And very industrial age about key points, key nodes in an economy and so on. Recode Staff, Recode, "Full transcript: Former NSA and CIA director General Michael Hayden on Recode Decode," 19 June 2018 For the first time since 2011, the lunar nodes (which reveal the upper and lower boundaries of the moon's orbit) will begin oscillating across the Cancer and Capricorn axis for the next two years. Aliza Kelly Faragher, Allure, "What Your Sign's July 2018 Horoscope Predictions Mean for You," 29 June 2018 No sooner did the first nodes of what became the internet make their first connection than fans began using it to build stable and persistent group infrastructures for their fandom. Nancy Baym, WIRED, "Book Excerpt: How Music Fans Built the Internet," 10 July 2018 Delaware’s evolving fintech node grows from its role as the nation’s credit-card lending center. Joseph N. Distefano,, "Fintech lenders are tracking and judging your digital trail," 3 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'node.' 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 node

15th century, in the meaning defined at sense 1a

History and Etymology for node

Middle English, from Latin nodus knot, node; akin to Middle Irish naidm bond

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Statistics for node

Last Updated

8 Sep 2018

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Time Traveler for node

The first known use of node was in the 15th century

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English Language Learners Definition of node

: a small lump or mass of tissue in your body

: the small round part on the stem of a plant where a leaf grows

: a place where lines in a network cross or meet


\ˈnōd \

Kids Definition of node

: a thickened spot or part (as of a plant stem where a leaf develops)


\ˈnōd \

Medical Definition of node 

1a : a pathological swelling or enlargement (as of a rheumatic joint)

b : a body part resembling a knot especially : a discrete mass of one kind of tissue enclosed in tissue of a different kind — see atrioventricular node, lymph node

2 : a point, line, or surface of a vibrating body that is free or relatively free of vibratory motion

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