Medical Words
MedicalWords

11,000+ medical terms. Free forever.

How to Pronounce Phototoxic Reaction

Definition, meaning, and phonetic spelling

Phototoxic Reaction Pronunciation

foh-toh-TOK-sik ree-AK-shun

Stressed syllable in ALL CAPS · hyphens separate syllables

Syllable Breakdown

foh
toh
TOK

stress here

sik ree
AK

stress here

shun

6 syllables

What is Phototoxic Reaction?

A phototoxic reaction is a non-immune, sunburn-like skin response that occurs when a photosensitizing substance (such as certain antibiotics or plant compounds) is activated by UV light. It differs from photoallergy in that it can occur on first exposure without prior sensitization.

Questions About Phototoxic Reaction

How do you pronounce 'phototoxic reaction'?

+
Say it like this: foh-toh-TOK-sik ree-AK-shun. The stress falls on the third syllable of the first word (TOK) and the first syllable of the second word (AK). Think of it as saying "photo" (like the camera app) + "TOX-ic" + "reaction."

What does 'photo' mean in 'phototoxic'?

+
The word part 'photo' comes from Greek and means 'light.' You'll see it in other words like 'photograph' (light writing) and 'photosynthesis' (light combining). In 'phototoxic,' the photo part tells you this reaction is triggered by light.

What does 'toxic' mean in 'phototoxic'?

+
The word part 'toxic' comes from Greek and means 'poisonous' or 'harmful.' You hear it in words like 'toxin' and 'intoxicated.' So 'phototoxic' literally means 'light-poisoning' or 'harmful response triggered by light.'

How do you break 'phototoxic' into syllables?

+
The word splits into five syllables: pho-to-TOX-ic. When you say it, the third syllable (TOX) gets the strongest emphasis, and the other syllables are said more lightly.

What's a common mistake when pronouncing this word?

+
Many people stress the wrong syllable and say pho-TOH-tox-ic or photo-TOX-ic. The correct stress is on TOK: foh-toh-TOK-sik. Remember that 'toxic' rhymes with 'stock,' not 'toke.'

What does 'phototoxic reaction' mean in simple words?

+
A phototoxic reaction is a skin response that happens when light activates a harmful substance on your skin. Unlike an allergy, it doesn't require your body to have seen the substance before—it can happen the first time the combination of light and substance occurs.

What are some related medical words that share the 'photo' root?

+
You'll hear 'photoallergy' (a light-triggered allergy, different from phototoxic), 'photosensitivity' (increased sensitivity to light), and 'photosensitizing' (a substance that makes skin react to light). All of these words start with 'photo' because they involve light in some way.

How would you use 'phototoxic reaction' in a sentence?

+
You might hear a doctor or nurse say: 'The patient developed a phototoxic reaction after sun exposure.' This sentence tells you that light activated a harmful response on the skin.