both refer to movie chains (i.e., Loews, AMC Theatres) with movie theatres that screen more than one film at a time, as opposed to single-screen theatres. A multiplex has from 2 up to 16 screens, a megaplex has 16 or more screens; plex is the abbreviation for a multiplex theatre.
A morula (Latin, morus: mulberry) is an early stage embryo consisting of cells (called blastomeres) in a solid ball contained within the zona pellucida.
A fistula (a term derived from the Latin word for pipe) is an abnormal connection between 2 epithelialized surfaces that usually involves the gut and another hollow organ, such as the bladder, urethra, vagina, or other regions of the gastrointestinal (GI) tract. fistula (a term derived from the Latin word for pipe) is an abnormal connection between 2 epithelialized surfaces that usually involves the gut and another hollow organ, such as the bladder, urethra, vagina, or other regions of the gastrointestinal (GI) tract.