Polytronn.

Brit.

/ˈpɒlɪtrɒn/, U.S.

/ˈpɑliˌtrɑn/

Forms: also with lower-case initial.

Origin: Formed within English, by derivation. Etymons: poly- comb. form, -tron suffix.

Etymology: < poly- comb. form + -tron suffix.

A proprietary name for: a machine used for mixing, homogenizing, dispersing, or emulsifying, chiefly in the preparation of biological samples for analytical purposes.

ΚΠ

1955 Official Gaz. (U.S. Patent Office) tm193/1 Polytron... for mechanical apparatus and machines, such as colloid mills..homogenizers, mixers, grinders, comminuters, for use in research and mechanical and chemical processing.

1961 Science 10 Mar. 716 (advt.) Polytron adds to blendor [sic] use... Versatile, precision rotor-stator attachment homogenizes, emulsifies, defibrates.

1982 Preparative Biochem. 12 209 Either minced whole kidneys or dissected cortex tissue is dispersed using a polytron and the desired fractions are obtained by sucrose density gradient centrifugation.

1993 Brit. Jrnl. Surg. 80 446/1 The protein estimation was performed by the method of Lowry et al. after homogenization for 1 min in 1 ml phosphate-buffered saline with 0.1 per cent sodium dodecylsulphate using a polytron blender.

This is a new entry (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	polytron
释义	Polytronn. Brit. /ˈpɒlɪtrɒn/, U.S. /ˈpɑliˌtrɑn/ Forms: also with lower-case initial. Origin: Formed within English, by derivation. Etymons: poly- comb. form, -tron suffix. Etymology: < poly- comb. form + -tron suffix. A proprietary name for: a machine used for mixing, homogenizing, dispersing, or emulsifying, chiefly in the preparation of biological samples for analytical purposes. ΚΠ 1955 Official Gaz. (U.S. Patent Office) tm193/1 Polytron... for mechanical apparatus and machines, such as colloid mills..homogenizers, mixers, grinders, comminuters, for use in research and mechanical and chemical processing. 1961 Science 10 Mar. 716 (advt.) Polytron adds to blendor [sic] use... Versatile, precision rotor-stator attachment homogenizes, emulsifies, defibrates. 1982 Preparative Biochem. 12 209 Either minced whole kidneys or dissected cortex tissue is dispersed using a polytron and the desired fractions are obtained by sucrose density gradient centrifugation. 1993 Brit. Jrnl. Surg. 80 446/1 The protein estimation was performed by the method of Lowry et al. after homogenization for 1 min in 1 ml phosphate-buffered saline with 0.1 per cent sodium dodecylsulphate using a polytron blender. This is a new entry (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1955
随便看	θ234199 θ2342 θ23420 θ234200 θ234201 θ234202 θ234203 θ234204 θ234205 θ234206 θ234207 θ234208 θ234209 θ23421 θ234210 θ234211 θ234212 θ234214 θ234215 θ234216 θ234217 θ234218 θ234219 θ23422 θ234220