from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A plant characterized by wood, bark and pith, the wood forming a layer between the other two, and growth only occurring on the outside.
from the GNU version of the Collaborative International Dictionary of English
- n. A plant belonging to one of the greater part of the vegetable kingdom, and which the plants are characterized by having c wood bark, and pith, the wood forming a layer between the other two, and increasing, if at all, by the animal addition of a new layer to the outside next to the bark. The leaves are commonly netted-veined, and the number of cotyledons is two, or, very rarely, several in a whorl. Cf. endogen.
from The Century Dictionary and Cyclopedia
- n. In botany, a plant in which the growth of the stem is in successive concentric layers.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. flowering plant with two cotyledons; the stem grows by deposit on its outside
Smilax belongs to a transition class, partaking somewhat of the nature of endogen and of exogen.
The former sees a tree in all its glory, where the latter sees an exogen with a pair of cotyledons.
Standardmetoden i forskningen är att hitta någon exogen källa till variation i mängden bistånd som olika länder får: Ett så kallat instrument för bistånd.
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