stabilimentumn.
/stəbɪlɪˈmɛntəm/ Entomology.
A conspicuous broad band of silk running across the web of certain kinds of spider.
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the world > animals > invertebrates > phylum Arthropoda > class Arachnida > [noun] > order Aranea > member of (spider) > web > principal supporting thread
spinner1861
stabilimentum1912
1912 J. H. Comstock Spider Bk. iv. 203 Some of the orb-weavers strengthen their webs by spinning a zigzag ribbon across the centre or below the hub (Fig. 188). This ribbon has been termed the stabilimentum.
1952 T. H. Savory Spider's Web iv In addition to radii and spirals there are certain accessory structures which most webs possess. Of these the most conspicuous, when present, is the stabilimentum.
1983 New Scientist 10 Feb. 366/1 It seems that stabilimenta are really early warning landmarks for birds.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018).
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n.1912