"Blue balls" is a slang term for a medical condition called epididymal hypertension. This condition occurs when prolonged sexual arousal without ejaculation causes fluid to build up in the testicles.

Investopedia / Zoe Hansen A traditional and perhaps outdated term, "blue collar" is a type of job that is done outside the office, often with manual labor or trade skills. The term blue collar is ...

Meta’s Messenger has a new logo set in Facebook blue. The instant messaging app dropped the multicolor gradient used in its previous logo for a solid blue that matches the shade used by Meta’s ...

Prussian blue (PB), also known as ferric hexacyanoferrate, is an inorganic substance that shows a zeolite-like face-centered cubic lattice. This material has been shown to exchange potassium ions for ...

In early December, Pantone announced its color of the year. For those of you who haven't heard the news, it's Classic Blue. Let's just say people had some thoughts about it. It's important to note ...