Formaldehyde Versus Casual-dehyde

Text on the meme

FORMALDEHYDE CASUAL-DEHYDE

What it means

A chemistry joke compares a formaldehyde molecule drawn as O=C(H)H with a “casual-dehyde” version wearing a colorful shirt and shorts. The punchline is a visual pun on “formal” versus “casual” clothing. EN: A chemistry joke compares a formaldehyde molecule drawn as O=C(H)H with a “casual-dehyde” version wearing a colorful shirt and shorts. The punchline is a visual pun on “formal” versus “casual” clothing.

Objects

chemical molecule / химическая молекула oxygen atom / атом кислорода carbon atom / атом углерода hydrogen atoms / атомы водорода colorful shirt / разноцветная рубашка shorts / шорты molecular diagram / схема молекулы hand-drawn illustration / рисованная иллюстрация