pedeticadj.

Brit.

/pᵻˈdɛtɪk/, U.S.

/pəˈdɛdɪk/

Origin: A borrowing from Greek. Etymon: Greek πηδητικός.

Etymology: < ancient Greek πηδητικός springing, leaping, apparently (although attested earlier) < Hellenistic Greek πηδητής dancer + -ικός -ic suffix. Compare pedesis n.

Science. Now rare.

Of or relating to Brownian motion (pedesis). pedetic motion n. (also pedetic movement) Brownian motion.

ΘΚΠ

the world > matter > physics > mechanics > types of motion > [noun] > irregular oscillation of free particles

Brownian motion1849

Brownian movement1871

pedesis1878

pedetic motion1878

1878 W. S. Jevons in Q. Jrnl. Sci. Apr. 171 The pedetic movement cannot be better seen than by taking a drop of old common ink which has been exposed to the air for some weeks, and examining it under thin glass with a magnifying power of 500 or 1000 diameters.

1892 Nature 3 Mar. 429/2 The pedetic or Brownian motion of small particles.

1952 Jrnl. Physical Chem. 56 278 This attraction is not so strong that the pedetic oscillations are halted as is the case in acid medium.

This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

单词	pedetic
释义	pedeticadj. Brit. /pᵻˈdɛtɪk/, U.S. /pəˈdɛdɪk/ Origin: A borrowing from Greek. Etymon: Greek πηδητικός. Etymology: < ancient Greek πηδητικός springing, leaping, apparently (although attested earlier) < Hellenistic Greek πηδητής dancer + -ικός -ic suffix. Compare pedesis n. Science. Now rare. Of or relating to Brownian motion (pedesis). pedetic motion n. (also pedetic movement) Brownian motion. ΘΚΠ the world > matter > physics > mechanics > types of motion > [noun] > irregular oscillation of free particles Brownian motion1849 Brownian movement1871 pedesis1878 pedetic motion1878 1878 W. S. Jevons in Q. Jrnl. Sci. Apr. 171 The pedetic movement cannot be better seen than by taking a drop of old common ink which has been exposed to the air for some weeks, and examining it under thin glass with a magnifying power of 500 or 1000 diameters. 1892 Nature 3 Mar. 429/2 The pedetic or Brownian motion of small particles. 1952 Jrnl. Physical Chem. 56 278 This attraction is not so strong that the pedetic oscillations are halted as is the case in acid medium. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < adj.1878
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