emollient- softener
retrograde- backward
melancholy- dark sadness
intracranial- within the skull
cardiovascular- of the heart and vessels
epiphany- revelation
histology- study of living tissues
perihelion- orbital point nearest the sun
inherent- built-in
plutocracy- government of the wealthy
sine qua non- essential element
corpulent- full-bodied
dichotomy- two-part division
pathological- diseased
cryptic- having hidden meaning
isosceles- having two equal sides
pathogen- disease-causer
vociferous- loudly-voiced
rectify- correct
sanctimonious- affectedly holy
tortuous- twisting
rectilinear- right-angled
metamorphosis- change of shape
petroglyph- rock carving
