nucleantadj.n.

Brit.

/ˈnjuːklɪənt/, U.S.

/ˈn(j)ukliənt/

Origin: Formed within English, by derivation. Etymons: nucleus n., -ant suffix¹.

Etymology: < nucleus n. + -ant suffix¹.

A. adj.

Forming a nucleus. rare.

ΚΠ

1953 S. Beckett Watt ii. 142 In his own vitals, nucleant, he knew them clasped.

B. n.

A particle that initiates nucleation, esp. in another substance; an agent of (esp. heterogeneous) nucleation. Cf. nucleus n. 3c.

ΘΚΠ

the world > matter > chemistry > atomic chemistry > [noun] > nucleus

nucleus1844

atomic nucleus1851

nucleant1959

1959 Science 18 Sept. 717/3 Siliceous or other active nucleants may exist in colloidal suspension in certain oceanic areas due to erosion of the shore line.

1969 G. F. Bolling in Solidification (Amer. Soc. Metals) (1971) xi. 364 The effective nucleants seem to be those active in the melt, in the sense of having been freshly formed in the melt.

1978 Philos. Trans. (Royal Soc.) A. 288 214 Interfacial separation can be made easier when gases are precipitated as bubbles along a grain boundary, but their rôle as nucleants for fracture is less potent than has sometimes been concluded.

1996 Jrnl. Appl. Meteorol. 35 1542/1 Cloud seeding operations..use considerable amounts of chemical nucleants.

This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).

单词	nucleant
释义	nucleantadj.n. Brit. /ˈnjuːklɪənt/, U.S. /ˈn(j)ukliənt/ Origin: Formed within English, by derivation. Etymons: nucleus n., -ant suffix¹. Etymology: < nucleus n. + -ant suffix¹. A. adj. Forming a nucleus. rare. ΚΠ 1953 S. Beckett Watt ii. 142 In his own vitals, nucleant, he knew them clasped. B. n. A particle that initiates nucleation, esp. in another substance; an agent of (esp. heterogeneous) nucleation. Cf. nucleus n. 3c. ΘΚΠ the world > matter > chemistry > atomic chemistry > [noun] > nucleus nucleus1844 atomic nucleus1851 nucleant1959 1959 Science 18 Sept. 717/3 Siliceous or other active nucleants may exist in colloidal suspension in certain oceanic areas due to erosion of the shore line. 1969 G. F. Bolling in Solidification (Amer. Soc. Metals) (1971) xi. 364 The effective nucleants seem to be those active in the melt, in the sense of having been freshly formed in the melt. 1978 Philos. Trans. (Royal Soc.) A. 288 214 Interfacial separation can be made easier when gases are precipitated as bubbles along a grain boundary, but their rôle as nucleants for fracture is less potent than has sometimes been concluded. 1996 Jrnl. Appl. Meteorol. 35 1542/1 Cloud seeding operations..use considerable amounts of chemical nucleants. This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022). < adj.n.1953
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