itch (
http://definr.com/itch)
n 1: a contagious skin infection caused by the itch mite;
characterized by persistent itching and skin irritation;
"he has a bad case of the itch" [syn:
scabies]
2: a strong restless desire; "why this urge to travel?" [syn:
urge]
3: an irritating cutaneous sensation that produces a desire to
scratch [syn:
itchiness,
itching]
v 1: scrape or rub as if to relieve itching; "Don't scratch your
insect bites!" [syn:
rub,
scratch]
2: have or perceive an itch; "I'm itching--the air is so dry!"
3: have a strong desire or urge to do soemthing; "She is
itching to start the project"