| polar mutation | <molecular biology> A mutation in a single gene which affects the rate of expression of other genes that are near it on a chromosome. (09 Oct 1997) |
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| polar plasm | <cell biology, embryology> Differentiated cytoplasm associated with the animal or vegetal pole of an oocyte, egg or early embryo. (18 Nov 1997) |
| polar plates | Condensed platelike bodies at the ends of the spindle during mitosis of certain types of cells. (05 Mar 2000) |
| polar presentation | The presentation of either pole of the foetal oval; may be either a cephalic or breech presentation, or a longitudinal lie. (05 Mar 2000) |
| polar ring | A thickened, electron-dense ring at the anterior end of certain stages of the Apicomplexa; part of the apical complex characteristic of these sporozoans. (05 Mar 2000) |
| polar solvents | Solvent's that exhibit polar forces on solutes, due to high dipole moment, wide separation of charges, or tight association; e.g., water, alcohols, acids. (05 Mar 2000) |
| polar star | One of the figures forming the diaster. Synonym: polar star. (05 Mar 2000) |
| polar zone | The region in the vicinity of an electrode applied to the body. See: electrotonus. (05 Mar 2000) |
| polarchy | See Polyarchy. Source: Websters Dictionary (01 Mar 1998) |
| polaric | See Polar. Source: Websters Dictionary (01 Mar 1998) |
| polarily | In a polary manner; with polarity. Source: Websters Dictionary (01 Mar 1998) |
| polarimeter | <optics> An instrument for determining the amount of polarization of light, or the proportion of polarized light, in a partially polarized ray. Origin: Polar. Source: Websters Dictionary (01 Mar 1998) |
| polarimetry | <optics> The art or process of measuring the polarization of light. Source: Websters Dictionary (01 Mar 1998) |
| polaris | <astronomy> The polestar. See North star, under North. Origin: NL. See Polar. Source: Websters Dictionary (01 Mar 1998) |
| polariscope | <instrument, optics> An instrument consisting essentially of a polarizer and an analyzer, used for polarizing light, and analyzing its properties. (28 Oct 1998) |
| polarity |
mutual opposition: a relation between two opposite attributes or tendencies; "he viewed it as a balanced polarity between good and evil" having an indicated pole (as the distinction between positive and negative electric charges); "he got the polarity of the battery reversed"; "charges of opposite sign"
Ãâó: wordnet.princeton.edu/perl/webwn
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| polar zone |
Frigid Zone: the part of the Earth's surface forming a cap over a pole; characterized by frigid climate
Ãâó: wordnet.princeton.edu/perl/webwn
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| polarize |
cause to vibrate in a definite pattern; "polarize light waves" cause to concentrate about two conflicting or contrasting positions become polarized in a conflict or contrasting situation
Ãâó: wordnet.princeton.edu/perl/webwn
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| polarographic |
of or involving polarography
Ãâó: wordnet.princeton.edu/perl/webwn
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| polarography |
an electrochemical method of chemical analysis
Ãâó: wordnet.princeton.edu/perl/webwn
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| POLA | a small cell containing little cytoplasm that is produced along with the oocyte and later discarded |
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| POLA | a line of latitude at the north or south poles |
| POLA | either of two values that locate a point on a plane by its distance from a fixed pole and its angle from a fixed line passing through the pole |
| POLA | the front of an advancing mass of colder air |
| POLA | a glacier near the Arctic or Antarctic poles |
| POLA | large hare of Arctic America almost completely white in winter |
| POLA | an opposition that can be graded between two extremes or poles |
| POLA | the brightest star in Ursa Minor |
| POLA | the part of the Earth's surface forming a cap over a pole |
| POLA | an optical device used to measure the rotation of the plane of vibration of polarized light |
| POLA | the brightest star in Ursa Minor |
| POLA | the phenomenon in which waves of light or other radiation are restricted in direction of vibration |
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