Available Definitions:
1) v. i. - To have an uneasy sensation in the skin, which inclines the person to scratch the part affected.
2) v. i. - To have a constant desire or teasing uneasiness; to long for; as, itching ears.
3) n. - An eruption of small, isolated, acuminated vesicles, produced by the entrance of a parasitic mite (the Sarcoptes scabei), and attended with itching. It is transmissible by contact.
4) n. - Any itching eruption.
5) n. - A sensation in the skin occasioned (or resembling that occasioned) by the itch eruption; -- called also scabies, psora, etc.
6) n. - A constant irritating desire.