lump

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lump

(lŭmp)
n.
1. An irregularly shaped mass or piece.
2. Medicine A swelling or small palpable mass.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
References in periodicals archive ?
This is a significant milestone toward creating lumped arrays of Josephson junctions for ac voltage standards.
Adding a third and fourth junction to each stack will be the next step toward the goal of fabricating and observing steps in 50-junction stacks in order to create a 2 mm long lumped array with 50 [omega] impedance.
Using this distance, species are progressively lumped by average link clustering (Gordon 1980) using the IMSL (1991) subroutine CLINK.