Construction is a general term meaning the art and science to form objects, systems, or organizations, and comes from Latin constructionem (from com-together and struere to pile up) and Old French construction. Construction is used as a verb: the act of building, and a noun: how a building was built, the nature of its structure.
Definition of Placenta accreta. Placenta accreta: The abnormal adherence of the chorion of the placenta to the myometrium of the uterus. Normally there is tissue intervening between the chorionic villi and the myometrium, but in 'placenta accreta, the vascular processes of the chorion grow directly in the myometrium. Placenta accreta can progress into placenta percreta. Search MedTerms:
placenta spuÂ´ria an accessory portion without blood vessels connecting it with the main placenta. placenta succenturiaÂ´ta an accessory portion with an artery and a vein connecting it with the main placenta. (1)âAccessory lobe (of placenta).fter birth of the infant the placenta is cast off from the uterus and expelled via the birth canal. placenta accreÂ´ta one abnormally adherent to the myometrium, with partial or complete absence of the decidua basalis.