| cotyledon | <botany> Modified leaf (seed leaf), found as part of the embryo in seeds, involved in either storage or absorption of food reserves. Dicotyledonous seeds contain two, monocotyledonous seeds only one. May appear above ground and show photosynthetic activity in the seedling. (18 Nov 1997) |
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| cotyledonary placenta | <plant biology> A placenta in which the substance is divided into lobes or cotyledons. (05 Mar 2000) |
| maternal cotyledon | A unit of the placenta made up of trophoblastic cells, fibrous tissue, and abundant blood vessels, which is visible grossly on the maternal surface as an irregularly shaped lobe circumscribed by a deep cleft and made up of a stem villus with numerous branching free villi and anchoring villi; placental vessels in the chorionic plate supply the stem villus and its branches, allowing gas and metabolite exchange across the trophoblastic layer with maternal blood in the intervillous space; traditionally called clinicians' cotyledon. (05 Mar 2000) |
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| foetal cotyledon | A unit of the foetal placenta supplied by the vessels of a stem villus; several such cotyledon's may occur between two placental septa; traditionally called embryologists' cotyledon. (05 Mar 2000) |
Synonyms : Coleoptiles, Cotyledons, Seed Leaves
| cotyledon |
embryonic leaf in seed-bearing plants
출처: wordnet.princeton.edu/perl/webwn
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| cotyledon |
A cotyledon (Greek: κωτυλυδών) is a significant part of the embryo within the seed of a plant. Upon germination, the cotyledon usually becomes the embryonic first leaves of a seedling. The number of cotyledons present is one characteristic used by botanists to classify the flowering plants (angiosperms). Species with one cotyledon are called monocotyledonous and placed in the Class Liliopsida. ...
출처: en.wikipedia.org/wiki/Cotyledon
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| cotyledon |
The hard outer case of the seed which holds the embryo (baby part of the plant) and gives it a food supply.
출처: library.thinkquest.org/3715/glossary_text.html
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| cotyledon |
one of the first pair of leaves in an embryo, seen following germination (seed leaf)
출처: www.anbg.gov.au/cpbr/cd-keys/Euclid/sample/html/gl...
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| cotyledon |
[Greek, kotyle = a deep cup] In the embryos of seed plants, the "seed leaves," in which nutrients arestored for use after germination.
출처: embryology.med.unsw.edu.au/Notes/Index/C.htm
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| cotyledon | embryonic leaf in seed-bearing plants |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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