D1, D01, D.I, D.1 or D-1 can refer to:
D1, D01, D.I, D.1 or D-1 can refer to:
==Science and technology== ===Biochemistry and medicine=== ATC code D01 Antifungals for dermatological use, a subgroup of the Anatomical Therapeutic Chemical Classification System Dopamine receptor D1, a protein Haplogroup D1 (Y-DNA) Vitamin D1, a form of Vitamin D DI, Iodothyronine deiodinase type I, an enzyme involved with thyroid hormones
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).