RCT may refer to:
== Science and technology == Random conical tilt, a technique used in cryogenic electron microscopy Rational choice theory, a framework for understanding social and economic behavior Reverse conducting thyristor Ritchey–Chrétien telescope Rubber Chemistry and Technology, a scientific journal Reversible Color Transform, a technique in computer graphics
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).