antipodal


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Related to antipodal: antipodal cells, Antipodal point

antipodal

[an′tip·əd·əl]
(botany)
Any of three cells grouped at the base of the embryo sac, that is, at the end farthest from the micropyle, in most angiosperms.
References in periodicals archive ?
This implies that the width of the polygon is characterized by a vertex and an edge (a vertex-edge pair) that are antipodal, i.
Then the interest concerning antipodal location of major Earth relief forms decreased sufficiently, and there are no studies today which explain the possible mechanisms of planetary relief antipodality formation and assessing its severity quantitatively.
In this view, to obtain the antipodal of a vertex x in [H.
Balanced Antipodal Vivaldi Antenna (BAVA), consisting of a balanced stripline structure with two layers of metallization, was introduced by Langley, Hall and Newham in [14] in order to overcome the high cross-polarization levels of a typical AVA.
Various types of ultra-wideband (UWB) antenna were proposed to be part of the microwave imaging; typical examples include pyramidal horn [6], tapered slot [7], antipodal [5], stacked patch [8], dielectric resonator [9], and printed monopole [10].
Let F' state for the antipodal point of the corresponding focal point F.
Alan Bond, who led the research, said: "If you wanted to go to Australia, or anywhere else in the antipodal world in four hours or so, then that would be the best way to go and you would pay [the cost of] a first class or business class flight.
The female gametophyte corresponds to the embryo sac and covers an egg cell, a central cell, two synergid cells, and several antipodal cells.
NICTA is also conducting theoretically driven fundamental research, such as camera motion estimation, recovering rotation across multiple images using LI averaging (Hartley, Aftab, and Trumpf 2011), and decoupling rotation and translation using antipodal points on hemispherical cameras (Lim, Barnes, and Li 2010).
Drawing a line from one antipodal point to its opposite results in a connection passing through the center of the circle, thus forming a perfect diameter.
An antipodal stand was taken by the First Low-Country Sinhala member of the Council, Sir Christoffel Obeyesekere.