Yahoo奇摩字典 網頁搜尋

搜尋結果

1. Oxford American Dictionary

   polar

   • IPA[ˈpōlər]

   美式

   • adj.
     relating to the North or South Pole；(of an animal or plant) living in the north or south polar region
   • n.
     the straight line joining the two points at which tangents from a fixed point touch a conic section.；a variable binary star which emits strongly polarized light, one component being a strongly magnetic white dwarf.

   • noun: polar, plural noun: polars

2. • 釋義

   adj.

   形容詞

   • 1. relating to the North or South Pole the polar regions 同義詞 Arctic, Antarctic, cold, frozen, freezing, ... 更多frigid, chill, chilling, icy, icy-cold, glacial, gelid, Siberian, informalBaltic, rareboreal, hyperborean, circumpolar, brumal, borean, hyperboreal
   • ▪ (of an animal or plant) living in the north or south polar region most polar birds breed seasonally
   • ▪ relating to the poles of a celestial body the polar radius of Jupiter is 66,550 km
   • ▪ relating to a celestial pole.
   • ▪ relating to the poles of a sphere.
   • ▪ relating to the poles of a cell, organ, or part.
   • 2. having electrical or magnetic polarity.
   • ▪ (of a liquid, especially a solvent) consisting of molecules with a dipole moment.
   • ▪ (of a solid) ionic.
   • 3. directly opposite in character or tendency depression and its polar opposite, mania 同義詞 opposite, opposed, opposing, oppositional, diametrically opposed, ... 更多extreme, contrary, contradictory, antithetical, antagonistic, conflicting, counterbalancing, rareantitypical, antonymous, antipodal, contrarious, dichotomous, oppositive

   n.

   名詞

   • 1. the straight line joining the two points at which tangents from a fixed point touch a conic section.
   • 2. a variable binary star which emits strongly polarized light, one component being a strongly magnetic white dwarf.