Body

SPLEEN

The spleen is an organ in the upper left abdomen that filters blood and helps fight infection. It removes old or damaged red blood cells and stores a reserve supply of blood. Though useful, a person can survive without it, relying on other organs to take over.

SPLEEN is the kind of word that shows up in themed word searches like Strands. Themed puzzles group words like this under a shared category — here, Body.