polyclonen.
/ˈpɒlɪkləʊn/, U.S. /ˈpɑliˌkloʊn/ Biology and Medicine.
A clone of cells derived from an initial small group of different parent cells.
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the world > life > biology > substance > cell > [noun] > mass or group of
polyblast1873
tetrad1876
triad1876
tetrad-deme1883
stem-line1892
paraganglion1907
polyclone1975
the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [noun] > descent from common ancestor > clone or polyclone
clone1970
polyclone1975
1975 F. H. C. Crick & P. A. Lawrence in Science 1 Aug. 341/3 The progeny of a cell marked at about the time of the drawing of boundary lines never fills a compartment completely, but often occupies an appreciable proportion of it. A compartment is thus made by the descendants of a small group of cells. We propose to call the cells in the compartment a polyclone. Just as a clone is a group of cells which are all, without exception, the descendants of a single cell, so a polyclone is a group of cells that are descended from a certain (small) group of cells—the founder cells—which were present in the embryo at an earlier time.
1989 New Scientist 22 Apr. 35/1 These cells are not clones (derived from one cell) or polyclones (derived systematically from more than one cell).
1993 Nature 25 Nov. 305/3 The anterior and posterior polyclones are both further subdivided into dorsal and ventral (D/V) and proximal (thorax) and distal (wing) polyclones.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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n.1975- long-spined
- long-spined sea urchin
- long-splice
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- long-spooned
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