Definition of resistor. : a device that has electrical resistance and that is used in an electric circuit for protection, operation, or current control.
Other skin conditions that result in dry, thickened skin on the foot include athlete's foot (tinea pedis), leg vein problems (venous stasis), psoriasis, and skin rashes caused by allergy or irritants. A common cause of dry, scaly skin and accentuated skin lines on a child's feet is the condition atopic dermatitis. 1  Photos and descriptions of eczema, atopic dermatitis, contact dermatitis, and athlete's foot.  Physical Stress: The environment inside a shoe can get very hot -- sometimes well over 120 degrees.
Wearing open backed shoes such as sandals and flip-flops can contribute to dry, cracked heels. In open-backed shoes, the fat on the heal expands sideways increasing pressure on the heel, which can lead to cracks. Skin Conditions. Skin conditions such as eczema, psoriasis and athlete's foot can contribute to dry feet. Eczema and psoriasis are skin conditions that result in dryness on the skin throughout the body.