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Wallace's line

noun, Zoogeography.
an imaginary line that separates the Oriental and Australian zoogeographical regions and passes between Bali and Lombok, west of Celebes, and east of the Philippines.
Origin of Wallace's line
First recorded in 1865-70; after A. R. Wallace Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for Wallace's line

Wallace's line

the hypothetical boundary between the Oriental and Australasian zoogeographical regions, which runs between the Indonesian islands of Bali and Lombok, through the Macassar Strait, and SE of the Philippines
Word Origin
C20: named after Alfred Russel Wallace
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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