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Egest vs. Vomit: What's the Difference?

Edited by Aimie Carlson || By Harlon Moss || Updated on November 13, 2023
Egest refers to the expulsion of undigested waste from the body, typically through defecation, while vomit involves forcefully expelling stomach contents through the mouth.

Key Differences

Egest is a biological term for the removal of undigested material from the body, usually through defecation. Vomit, conversely, specifically refers to expelling contents from the stomach through the mouth, often due to nausea or illness.
The process of egestion is a normal part of digestion, occurring routinely in healthy organisms. Vomiting, however, is generally an involuntary response to irritation or distress in the stomach.
Egestion involves solid or semi-solid waste leaving the digestive tract. In contrast, vomit typically includes a mixture of partially digested food and stomach acids.
While egestion is a discreet and controlled bodily function, vomiting is often sudden and can be a sign of underlying health issues.
Egest does not typically involve a sense of urgency or discomfort, unlike vomiting, which is often accompanied by nausea and physical discomfort.

Comparison Chart


Expulsion of undigested waste, typically through defecation
Forceful expulsion of stomach contents through the mouth


Part of normal digestion
Often an involuntary response to stomach distress

Substance Expelled

Solid or semi-solid waste
Partially digested food and stomach acids

Bodily Function

Controlled and routine
Sudden and can indicate health issues

Associated Sensations

Generally no discomfort
Often accompanied by nausea and discomfort

Egest and Vomit Definitions


To expel undigested material from the body.
The bird egested the indigestible parts of its meal.


Forceful expulsion of gastric contents.
The child vomited after riding the roller coaster.


The process of discharging waste after digestion.
Healthy digestion involves both ingest and egest.


To expel contents from the stomach through the mouth.
She felt nauseous and began to vomit.


Elimination of fecal matter from the digestive tract.
Egestion is a vital function in maintaining bodily health.


The act of ejecting stomach matter due to illness or distress.
Food poisoning caused him to vomit.


The act of defecating to remove waste.
Regular egestion is a sign of a healthy digestive system.


To regurgitate food or liquid.
Overeating can sometimes make a person vomit.


To release undigested substances from the body.
The animal's body egests what it cannot digest.


Ejecting matter from the stomach as a physical response.
Motion sickness often leads to vomiting.


To discharge or excrete from the body.


To eject part or all of the contents of the stomach through the mouth, usually in a series of involuntary spasmic movements.


To eliminate undigested food or waste from the body (as feces).


To be discharged forcefully and abundantly; spew or gush
The dike burst, and the floodwaters vomited forth.


To cast or throw out; to void, as excrement; to excrete, as the indigestible matter of the food; in an extended sense, to excrete by the lungs, skin, or kidneys.


To eject (contents of the stomach) through the mouth.


Eliminate from the body;
Pass a kidney stone


What does egest mean?

Egest refers to the expulsion of waste from the body, typically through defecation.

What is vomiting?

Vomiting is the forceful expulsion of stomach contents through the mouth.

Can vomiting be voluntary?

Rarely, as it's usually an involuntary physical reaction.

Is vomiting always due to illness?

Often, but it can also be caused by motion sickness or other factors.

Does egestion only involve solid waste?

Mostly, but it can include semi-solid waste too.

Is egest part of a healthy digestive system?

Yes, regular egestion is a sign of good digestive health.

Are there medications to prevent vomiting?

Yes, antiemetics can help prevent or reduce vomiting.

Can egestion be controlled?

Yes, egestion is a controlled bodily process.

Is egestion the same as defecation?

Yes, egestion is a more formal term for defecation.

Can anxiety cause vomiting?

Yes, anxiety can sometimes lead to vomiting.

Do all animals egest?

Yes, all animals with digestive systems egest.

What might cause someone to vomit?

Factors like illness, food poisoning, or severe distress.

Is egestion different from urination?

Yes, egestion expels fecal matter, while urination expels urine.

What is the purpose of egestion?

To remove indigestible waste from the body.

Is vomiting harmful?

Frequent vomiting can be harmful, but occasional vomiting is typically not.

Can egestion be a problem in digestive disorders?

Yes, disorders like constipation can affect egestion.

Does egesting involve discomfort?

Typically, no, it's a normal bodily function.

Can vomiting be a symptom of a serious condition?

Yes, persistent vomiting may indicate a serious health issue.

Is it normal to vomit occasionally?

Occasional vomiting isn't uncommon, but frequent vomiting is a concern.

Can vomiting lead to dehydration?

Yes, excessive vomiting can cause dehydration.
About Author
Written by
Harlon Moss
Harlon is a seasoned quality moderator and accomplished content writer for Difference Wiki. An alumnus of the prestigious University of California, he earned his degree in Computer Science. Leveraging his academic background, Harlon brings a meticulous and informed perspective to his work, ensuring content accuracy and excellence.
Edited by
Aimie Carlson
Aimie Carlson, holding a master's degree in English literature, is a fervent English language enthusiast. She lends her writing talents to Difference Wiki, a prominent website that specializes in comparisons, offering readers insightful analyses that both captivate and inform.

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