long interspersed elements
Also found in: Medical.
long interspersed elements[¦lȯŋ ¦in·tər‚spərst ′el·ə·məns]
Families of deoxyribonucleic acid sequences, many truncated, that are inserted singly but in large numbers throughout the genome in many mammals, constituting about 15% of the human genome; some full-length copies are transposons. Abbreviated LINES.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.