SO3 may refer to Sulfur trioxide, , a chemical compound of sulfur and the anhydride of sulfuric acid Sulfite, , a chemical ion composed of sulfur and oxygen with a 2− charge SO(3), the special orthogonal group in 3 dimensions; the rotations that can be given an object in 3-space Star Ocean: Till the End of Time, the third main game in the Star Ocean series A staff officer of the third class, usually a junior officer Special Operations 3 - Planning, of SOE (Special Operations Executive, British, World War II) SO3, a TL9000 metric defined as the number of service impact product-attributable outages per NU (normalization unit) per year WSK PZL Rzeszów SO-3, a Polish turbojet engine.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).