node

noun

ˈnōd 

1

a

: 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

4

a

: 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

5

a

: 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 2b

Synonyms of node

• nodule
• swelling
• lump
• bump
• tumor

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

The new Australian shipyard could eventually become another important industrial node supporting allied submarine operations across the Indo-Pacific. — Aamir Khollam, Interesting Engineering, 19 Aug. 2026

On trade, an artisanal approach would mean investing in new infrastructure nodes built around corridors and ports, such as the Lobito Corridor, a logistics route connecting mineral-rich central Africa to the Atlantic. — Mark Leonard, Foreign Affairs, 18 Aug. 2026

In recent weeks, Kyiv has intensified its attacks on refineries, pipelines, storage facilities and other key infrastructure nodes. — Ilan Berman, Forbes.com, 17 Aug. 2026

Taking your cuttings from directly beneath a leaf node can help stimulate root growth. — Samantha Johnson, Martha Stewart, 12 Aug. 2026

Word History

Etymology

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

First Known Use

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

Phrases Containing node

• angiofollicular lymph node hyperplasia
• atrioventricular node
• A-V node
• giant lymph node hyperplasia
• lymph node
• mucocutaneous lymph node disease
• mucocutaneous lymph node syndrome
• node of Ranvier
• sinoatrial node
• sinus node

Rhymes for node

• blowed
• bode
• code
• crowed
• flowed
• glowed
• goad
• growed
• knowed
• load
• lode
• lowed

Kids Definition

node

noun

ˈnōd 

1

a

: a thickened or swollen enlargement (as of a joint with rheumatism)

b

: a mass of tissue in the body resembling a knot

2

: a point on a stem at which a leaf is inserted

Medical Definition

node

noun

ˈnōd 

1

a

: 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