
thumb|right|The gnomon is the triangular blade in this sundial.
thumb|right|The gnomon is the triangular blade in this sundial.
A gnomon (; ) is the part of a sundial that casts a shadow. The term is used for a variety of purposes in mathematics and other fields, typically to measure directions, position, or time.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).