🇬🇧 Bioluminescence meaning: English Vocabulary Flash Card

Bioluminescence is a special kind of light that some living creatures make inside their bodies, like fireflies, glowing jellyfish, and some deep-sea fish. This light is created by a tiny chemical reaction, almost like a super tiny glow-stick party happening inside them. Animals use bioluminescence to find food, talk to each other, scare away enemies, or hide by blending in with other lights in the ocean. It’s not hot like a lightbulb, but it shines in the dark like magic made by nature.

The jellyfish’s bioluminescence made it look like a floating neon pillow that nobody should ever actually hug.

When I heard about bioluminescence, I realized even plankton have better party lights than my entire house.

At the aquarium, the bioluminescence room was so sparkly that my brain tried to clap.

My little brother said he wished for bioluminescence so he could read comics under the blanket without getting caught.

Fireflies use bioluminescence to talk to each other with light signals, which means they were having blinking conversations in the yard while I was still learning how to text properly.

On black sand, a child scooped cold water and found blue bioluminescence from tiny creatures in her palms. The bioluminescence pulsed like a small heartbeat. She let it run through her fingers; the bioluminescence streaked across the dark sea. Laughter broke the night, and the bioluminescence faded into a calm, remembered glow. She kept the bioluminescence memory close.

This word is at the C2 level, which means it represents the highest mastery of English. It’s often used in specialized or highly formal contexts and helps you communicate with precision and subtlety, much like a native speaker.

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