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noun

actin

AK-tihn

Actin (noun) means a protein that forms thin filaments inside cells, essential for muscle contraction and cell movement. Example: “Actin filaments help give the cell its shape and structure.”

noun
1
A protein that forms thin filaments inside cells, essential for muscle contraction and cell movement.
"Actin filaments help give the cell its shape and structure."

How to Use Actin

Learner’s notes

In plain EnglishA key protein in cells that builds the flexible internal scaffolding used for movement and muscle contraction.

When to use it

Mostly used in biology and medicine.

Word Forms

actins plural

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_____ filaments help give the cell its shape and structure.

Etymology

From Greek aktis ("ray"), referring to the ray-like arrangement of the filaments it forms, plus the chemical suffix -in.

Origin: Greek

Frequently Asked Questions

What does “actin” mean?

The word “actin” means a protein that forms thin filaments inside cells, essential for muscle contraction and cell movement. In plain terms, a key protein in cells that builds the flexible internal scaffolding used for movement and muscle contraction.

How do you pronounce “actin”?

“Actin” is pronounced AK-tihn (/ˈæktɪn/ in IPA).

How do you use “actin” in a sentence?

Here is “actin” used in a sentence: “Actin filaments help give the cell its shape and structure.”

What part of speech is “actin”?

“Actin” is a noun.

Where does the word “actin” come from?

The word “actin” comes from Greek. From Greek aktis ("ray"), referring to the ray-like arrangement of the filaments it forms, plus the chemical suffix -in.

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