The word "Tricrotous" (/'traɪkrəʊtəs/) is not a common word and may be unfamiliar to most people. It is derived from the Greek words "tri", meaning "three", and "krotos", meaning "beating or clapping". The phonetic transcription of the word shows that it has a long "i" sound followed by the consonant cluster "cr". The ending "-ous" means "full of" or "having the qualities of". Therefore, "Tricrotous" means "having three beats or claps", and is most commonly used in the context of music or rhythm.
Tricrotic.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.