Pyroelectrical is a term used to describe materials that generate an electric charge when heated or cooled. Some synonyms for this word include thermoelectric, thermally induced electrical, and thermocharge materials. These materials have a wide range of applications in fields such as energy conversion, sensing, and electronics. Other related concepts or words include pyroelectricity, thermoelectricity, electrocaloric effect, and piezoelectricity. The study of pyroelectrical materials and their properties is an active area of research in the field of materials science and engineering, and new discoveries and advancements are being made regularly.