We don't have synonyms for catacrotic yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are anacrotic, catabiotic and catacrotism.
(adj) :
(physiology) Relating to, or characterized by, that form of pulse tracing, or sphygmogram, in which the descending portion of the curve is marked by secondary elevations due to two or more expansions of the artery in the same beat.
(adj) :
(physiology) Relating to, or characterized by, that form of pulse tracing, or sphygmogram, in which the descending portion of the curve is marked by secondary elevations due to two or more expansions of the artery in the same beat.