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heterolecithal

[het-er-uh-les-uh-thuh l]
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adjective Embryology.
  1. having an unequal distribution of yolk, as certain eggs or ova.
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Origin of heterolecithal

First recorded in 1890–95; hetero- + lecithal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for heterolecithal

heterolecithal

adjective
  1. (of the eggs of birds) having an unequally distributed yolkCompare isolecithal
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Word Origin

C19: hetero- + Greek lekithos egg yolk
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