fetus,
foetus an unborn or unhatched vertebrate in the later stages of development showing the main recognizable features of the mature animal
medical specialty,
medicine the learned profession that is mastered by graduate training in a medical school and that is devoted to preventing or alleviating or curing diseases and injuries; "he studied medicine at Harvard"
acardia congenital absence of the heart (as in the development of some monsters)
monster -
an imaginary creature usually having various human and animal parts
A monster is any fictional creature, usually found in legends or horror fiction, that is somewhat hideous and may produce physical or mental fear by either its appearance or its actions. The word "monster" derives from Latin monstrum, an aberrant occurrence, usually biological, that was taken as a sign that something was wrong within the natural order. The word connotes something wrong or evil; a monster is generally morally objectionable, physically or psychologically hideous, and/or a freak of nature.