situated at or near, coming from, or relating to either of the earth's poles or the area inside the Arctic or Antarctic Circles
polar regions
2.
having or relating to a pole or poles
3.
pivotal or guiding in the manner of the Pole Star
4.
directly opposite, as in tendency or character
5. chemistry
a. Also: heteropolar
(of a molecule or compound) being or having a molecule in which there is an uneven distribution of electrons and thus a permanent dipole moment
water has polar molecules
b.
(of a crystal or substance) being or having a crystal that is bound by ionic bonds
sodium chloride forms polar crystals
Examples of 'heteropolar' in a sentence
heteropolar
All hybrids form heteropolar and homopolar magaspore tetrads; the embryo sac, however, usually develops from the micropylar megaspore.
Renata Śnieżko 2014, 'Megaspore competition in F1 and F2 hybrids between Oenothera hookeri and Oe. suaveolens',Acta Societatis Botanicorum Poloniaehttps://pbsociety.org.pl/journals/index.php/asbp/article/view/3145. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In general those grains are heteropolar, oblato to prolate spheroidal, intectate, tectate or perforated tectate or semitectate.
Bogotá Angel Raúl Giovanni, Rangel Churio Jesús Orlando, Jiménez Bulla Luis Carlos 2001, 'Atlas palinológico de la Amazonia colombiana IV. Familia Arecaceae', Caldasiahttp://www.revistas.unal.edu.co/index.php/cal/article/view/17679. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)