Trough may refer to:
==In science== Trough (geology), a long depression less steep than a trench Trough (meteorology), an elongated region of low atmospheric pressure Trough (physics), the lowest point on a wave Trough level (medicine), the lowest concentration of a medicine is present in the body over time Langmuir-Blodgett trough, a laboratory instrument
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).