noun Uncommon

livin

Livin (noun) means a protein in the body that blocks cells from undergoing programmed cell death (apoptosis), and which is often found at abnormally high levels in tumours. Example: “Researchers found that blocking livin made cancer cells far more sensitive to chemotherapy.”

Study it as flashcards or scroll it in Vocabulary Flow — saved to your collection.

noun

A protein in the body that blocks cells from undergoing programmed cell death (apoptosis), and which is often found at abnormally high levels in tumours.

"Researchers found that blocking livin made cancer cells far more sensitive to chemotherapy."

How to use livin

Learner’s notes

In plain EnglishA specialist biology and medical term for a cell-survival protein studied mainly in cancer research.

When to use it

Technical/scientific term — you won't encounter it outside biology, medicine, or biochemistry contexts.

Vocabulary Flow

Build your vocabulary from words like livin.

Vocabulary Flow serves the next word, and the next — meaning, pronunciation and an example each time. Practice at your level, or learn English in your own language.

Start vocabulary practice

C2 · Advanced serendipity Fortunate discoveries made entirely by accident.

Gen Z slang rizz Charm — the ability to attract a romantic interest.

B2 · Intermediate empathy The capacity to share another person’s feelings.

C1 · Advanced nonchalant Casually calm and relaxed; unconcerned.

Internet slang delulu Delusional — believing something against the odds.

Etymology nostalgia Greek nostos “return home” + algos “pain”.

C2 · Advanced serendipity Fortunate discoveries made entirely by accident.

Gen Z slang rizz Charm — the ability to attract a romantic interest.

B2 · Intermediate empathy The capacity to share another person’s feelings.

C1 · Advanced nonchalant Casually calm and relaxed; unconcerned.

Internet slang delulu Delusional — believing something against the odds.

Etymology nostalgia Greek nostos “return home” + algos “pain”.

Test yourself on “livin” A quick quiz — meaning, synonyms & usage →

Fill the gap

Can you complete this real example?

Researchers found that blocking _____ made cancer cells far more sensitive to chemotherapy.

Etymology

Formed from "live" plus the biochemical suffix "-in" (used for naming proteins), reflecting its role in keeping cells alive.

Frequently asked questions

What does “livin” mean?

The word “livin” means a protein in the body that blocks cells from undergoing programmed cell death (apoptosis), and which is often found at abnormally high levels in tumours. In plain terms, a specialist biology and medical term for a cell-survival protein studied mainly in cancer research.

How do you use “livin” in a sentence?

Here is “livin” used in a sentence: “Researchers found that blocking livin made cancer cells far more sensitive to chemotherapy.”

What part of speech is “livin”?

“Livin” is a noun.

Is “livin” a common word?

“Livin” is an uncommon word in modern English.