dialytic
 (a.)透析的,透膜性的
 di·a·lyt·ic /ˌdaɪəˈlɪtɪk/ 形容詞
 滲析的
 Di·a·lyt·ic a.  Having the quality of unloosing or separating.
 Dialytic telescope, an achromatic telescope in which the colored dispersion produced by a single object lens of crown glass is corrected by a smaller concave lens, or combination of lenses, of high dispersive power, placed at a distance in the narrower part of the converging cone of rays, usually near the middle of the tube.
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