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Stage SpecificPlay
Use 'fetus' for development stages over eight weeks, before that it's called 'embryo'. SlideThe fetus is now the size of an orange.
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Medical ContextPlay
'Fetus' is often used by healthcare professionals to communicate about pregnancy. SlideThe fetus's heartbeat is strong and healthy.
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Technical TermPlay
'Fetus' is a technical term; 'baby' might be used informally after birth. SlideWe saw our baby's fetus during the sonogram.