hetero lecithal


adjective Embryology.
having an unequal distribution of yolk, as certain eggs or ova.

1890–95; hetero- + lecithal

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World English Dictionary
heterolecithal (ˌhɛtərəʊˈlɛsɪθəl)
Compare isolecithal (of the eggs of birds) having an unequally distributed yolk
[C19: hetero- + Greek lekithos egg yolk]

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