Correct spelling for the English word "dinical" is [dˈɪnɪkə͡l], [dˈɪnɪkəl], [d_ˈɪ_n_ɪ_k_əl] (IPA phonetic alphabet).
Dinical is not a recognized word in the English language. It is possible that you might be referring to a different term or spelling it incorrectly. To provide a dictionary definition, it is necessary to have a clear understanding of the word. If you could clarify or offer more information, I would be happy to try and assist you further.
1. Relating to, or relieving vertigo.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.