ELI5: Explain Like I'm 5

Spinnbarkeit

Spinnbarkeit is a big word that doctors and scientists use to describe how stretchy and slimy something is. You know how you can stretch a piece of gum or slime and sometimes it gets really thin? That's kind of like spinnbarkeit.

Spinnbarkeit is usually used to describe mucus, which is the gooey stuff that helps protect our nose and throat. When mucus has spinnbarkeit, it means it can be pulled and stretched really far without breaking. Mucus with spinnbarkeit is usually a sign that a woman is ovulating, which means her body is ready to make a baby.

So, when doctors talk about spinnbarkeit, they're really talking about how stretchy and slimy mucus is. And when they see spinnbarkeit, they know that a woman might be ready to get pregnant!