x1 is a dinosaur [very general: any ancient quasi-reptilian vertebrate or, possibly but probably not, modern bird] of type x2 living in era x3.
A gismu version of dinsauru; contrast with rexsa (in particular, this word probably would not but could refer to modern birds whereas rexsa can without any connotation to the contrary; meanwhile, rexsa cannot refer to pterodons vel sim. but this word can). The use of this word is not strictly only relevant to members of clade Dinosauria, although it does include them (and, specifically, modern birds, although it connotes ancientness and extinction unless it is part of am explicitly contrary context); its referent might also/alternatively include pterosaurs, icthyosaurs, plesiosaurs, mosasaurs, dimetrodons, avemetatarsaliads, and perhaps even other synapsids (in other words, any prehistoric quasi-reptilian vertebrate). As such, it is a qualitative word that bears no particular or strong attention or respect to genealogy or academic classification of these animals. Basically, any prehistoric animal the name of which ends in "-saur" can be so-described, as well as others. Proposed short rafsi: -dis-. See also: rexsa, ketslau, ikfiio, disrmuzo, plesiio.