The American Heritage® Dictionary of the English Language, 4th Edition
n. Swelling, especially in subcutaneous tissues, as a result of obstruction of lymphatic vessels or lymph nodes, with accumulation of lymph in the affected region.
n. The swelling of tissue due to retention of fluid in the lymph vessels
The Century Dictionary and Cyclopedia
n. A dropsical condition of the tissues due to obstruction to the flow of lymph.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. swelling (usually in the legs) caused by lymph accumulating in the tissues in the affected areas
Word Usage
"Patients whose lymphatic system is obstructed a condition called lymphedema that may result from parasites or from radiation treatment for cancer often exhibit swelling in the extremities, the result of pooling lymph."