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LC control no.sh2003004641
Topical headingEmbryos
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Variant(s)Animal embryos
See alsosubdivision Embryos under individual animals and groups of animals, e.g. Cattle--Embryos; Fishes--Embryos
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Found inThe Amer. Heritage dict. of the Engl. lang., c2000 (embryo: 1a. An organism in its early stages of development, especially before it has reached a distinctively recognizable form. b. An organism at any time before full development, birth, or hatching. 2a. The fertilized egg of a vertebrate animal following cleavage. b. In humans, the prefetal product of conception from implantation through the eighth week of development)
McGraw-Hill dict. of sci. and tech. terms, c1989 (embryo [EMBRYO] 1. An early stage of development in multicellular organisms. 2. The product of conception up to the third month of human pregnancy)
Henderson's dict. of biological terms, c2000 (embryo: multicellular animal or plant before it is fully formed and capable of independent life. It develops from a fertilized egg (zygote) and develops into a free-living miniature adult or larva, in animals, or germinates into a seedling, in plants)
The Wordsworth dict. of sci. & tech., 1995 (embryo (Zool.). An immature organism in the early stages of its development, before it emerges from the egg or from the uterus of the mother.)