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capillary Synonyms

Another word for capillary

Choosing another word for capillary depends on context, so the synonyms and similar words below are separated across 3 exact definitions and ranked by match strength.
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• noun (Context 1)

Any of the fine, branching blood vessels that form a microscopic network between the arterioles and venules, enabling the exchange of oxygen, nutrients, and waste with surrounding tissues.

Usage Example

"Oxygen diffuses across the thin walls of the capillaries directly into the muscle cells."

Strong
microvessel
Weak
blood vessel

• adjective (Context 2)

Having a very slender, hairlike internal diameter, or relating to the surface tension phenomenon by which liquid rises or falls in such narrow spaces.

Usage Example

"Groundwater moves upward through the soil toward plant roots largely by hairlike action."

Strongest
hairlike
Strong
filiform
threadlike
Weak
slender

• noun (Context 3)

A tube with an extremely narrow, hairlike internal diameter, used in laboratory science and instrumentation.

Usage Example

"The chemist drew a tiny droplet of the sample into a glass capillary tube for melting-point analysis."

Strongest
capillary tube
Strong
microtube

Opposites of capillary

The opposite of capillary shifts depending on context. Common opposites include:

wide
thick
See all opposites of capillary

Cite this Entry


Wordmom. (2026). Synonyms for Capillary. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/capillary
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