innocuous
not injurious to physical or mental health
usurp
seize and take control without authority and possibly with force; take as one's right or possession
entomology
the branch of zoology that studies insects
epidemiology
the branch of medical science dealing with the transmission and control of disease
delineate
represented accurately or precisely
sophistry
a deliberately invalid argument displaying ingenuity in reasoning in the hope of deceiving someone
sphincter
a ring of muscle that contracts to close an opening
