Definition

A medical technique that uses high-frequency sound waves to create images of the inside of the body, often used to check on the health of a developing baby or to examine organs.

Example

The doctor used an ultrasound to check the baby's heartbeat during the pregnancy.

Conversation

I have an ultrasound appointment tomorrow for my check-up.

Oh, that's good! Are you nervous about it?

Not really, I just hope everything looks normal on the ultrasound.

I'm sure it will be fine — just think of it as a cool way to see inside!

Synonyms & Antonyms

Root Explanation

**Ultrasound** → It is formed from "ultra-" (meaning beyond) and "sound" (from Old English "sund", meaning noise or auditory sensation). The word "ultrasound" refers to sound waves that are beyond the range of human hearing.

Memory Tip

Think of 'beyond' ('ultra-') normal hearing — that's why ultrasound refers to sound that is beyond what we can hear.

Visually Confused Words