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14 DEV | Infertility Caused By Everyday Toxic Products
Today’s video will teach you five real English words used by native speakers.

5 Vocabulary Words + Timestamps
Toxicologist [00:26]
Groundbreaking [00:28]
Chronic disease [04:04]
Shrugged it off [06:03]
Component [08:33]
You learned 5 words from today’s video—Premium members unlock all 25 words from the same video plus the PDF lesson.
Definitions & Example Sentences
1. Toxicologist
Definition: A scientist who specializes in the study of the nature and effects of poisons and the treatment of poisoning.
Example Sentences:
The toxicologist analyzed the substance to determine if it was the cause of the patient's symptoms.
After years of research, the toxicologist published her findings on the long-term impact of heavy metals on human health.
Toxicologists often work in crime labs to help law enforcement officers identify toxic substances involved in criminal cases.
2. Groundbreaking
Definition: Innovative or pioneering; introducing new ideas or methods; revolutionary.
Example Sentences:
The groundbreaking research opened up new possibilities in the field of renewable energy.
The architect won an award for her groundbreaking design that combined sustainability with modern aesthetics.
The software company's groundbreaking algorithm significantly improved data processing speeds.
3. Chronic Disease
Definition: A disease that persists for a long time, typically longer than three months, such as diabetes or heart disease.
Example Sentences:
The clinic specializes in the treatment of chronic diseases, with a focus on lifestyle modification and medication management.
Education about diet and exercise is crucial for managing chronic disease effectively.
The rise in chronic disease prevalence worldwide is a growing concern for public health professionals.
4. Shrugged it off
Definition: To dismiss or minimize the importance of something, often indicating indifference or unwillingness to engage with the subject matter.
Example Sentences:
She shrugged off the criticism of her work, confident that her results would speak for themselves.
Despite feeling a sharp pain in his shoulder, the athlete shrugged it off and continued the game.
When confronted about the mistake, he merely shrugged it off and changed the subject.
5. Component
Definition: A part or element of a larger whole, such as a piece of machinery or a system.
Example Sentences:
The engine is made up of several components that must all function properly for the car to run smoothly.
One of the key components of a balanced diet is the consumption of sufficient fruits and vegetables.
The new computer had a state-of-the-art graphics component, which made it perfect for gaming.
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