
thumb|A replica xylospongium (sponge on a stick) thumb|Ancient Roman latrines in Ostia Antica
thumb|A replica xylospongium (sponge on a stick) thumb|Ancient Roman latrines in Ostia Antica
The xylospongium or tersorium, also known as a "sponge on a stick", was an utensil found in ancient Roman latrines, consisting of a wooden stick (Greek: , xylon) with a sea sponge (Greek: , spongos) fixed at one end.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).