Elongation: The distance of a planet from the Sun, as viewed from Earth. The maximum elongation for the inferior planets is 28° for Mercury, and 48° for Venus. Mercury can therefore only form a conjunction and semi-sextile to the Sun; Venus can onlly form a conjunction, semi-sextile, or semi-square to the Sun. Aphelion is the maximum elongation of a planet, while perihelion is the minimum elongation of a planet. See also aphelion, perihelion.

 

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Elongation: The distance of a planet from the Sun, as viewed from Earth. The maximum elongation for the inferior planets is 28° for Mercury, and 48° for Venus. Mercury can therefore only form a conjunct . . . View Full Definition

Region Of Elongation: The area in the tip of a plant root where cells grow by elongating, thereby increasing the length of the root.

Zone Of Elongation: Area in plant roots where recently produced cells grow and elongate prior to differentiation.

Foliation: The planar or layered characteristics of metamorphic rocks that are evidence of the pressures and/or temperatures to which the rock was exposed. These can be structural such as cleavage, tex . . . View Full Definition