ECF may refer to:
== Science, technology and medicine == East Coast fever or theileriosis, a disease of cattle in Africa Electrochemical fluorination Elemental chlorine free, a form of paper bleaching Enterocutaneous fistula Evolving classification function Extracellular fluid Eye-controlled focusing ECF, a chemotherapy regimen
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).