n.an abnormal or irrational
fear of heights. This
word is formed from acro- used in a combining
form to mean height, from Greek akros meaning highest or topmost and the suffix -
phobia, also used in a combining
form to mean dread or
fear. Common examples of acrophobia
include the
fear of
standing at the top of a tall
ladder or building, or the
fear of
flying in an airplane.