polio
UK[ˈpəʊ.li.əʊ]US[ˈpoʊ.li.oʊ]
n
a serious infectious disease that can cause permanent paralysis, especially in children.
Morpheme Breakdown
poli
o
poli
grey
o
suffix
Etymology
the word 'polio' is a shortened form of 'poliomyelitis'. it originates from the greek words 'polios', meaning 'grey', and 'myelos', meaning 'marrow', combined with the suffix '-itis' denoting inflammation. the term 'grey marrow' refers to the grey matter of the spinal cord, which is the primary site affected by the viral inflammation. thus, the modern term 'polio' logically retains the 'grey' root, directly linking the disease's pathology to its ancient descriptive name.
Analysis
Structure: poli (grey) + o (suffix)
poli- (from greek 'polios', meaning 'grey'); -o (a common noun-forming suffix in medical/biological terms, often from greek).
Examples
the vaccine has nearly eradicated polio in many parts of the world.
before widespread immunization, polio outbreaks were a major public health fear.
survivors of polio sometimes experience post-polio syndrome later in life.