nasticadj.

Brit.

/ˈnastɪk/, U.S.

/ˈnæstɪk/

Origin: A borrowing from German, combined with an English element. Etymons: German nastisch , -ic suffix.

Etymology: < German nast- (in nastisch (E. Strasburger Lehrb. der Bot. (ed. 6, 1904) I. ii. 221) < ancient Greek ναστός pressed together ( < νάσσειν to press, squeeze together, of uncertain origin + -τός , suffix forming verbal adjectives) + German -isch -ish suffix¹) + -ic suffix. Compare earlier epinastic adj., hyponasty n.

Botany.

Of a plant movement: caused by an external influence that does not affect its direction.

ΘΚΠ

the world > plants > part of plant > growth, movement, or curvature of parts > [adjective] > nastic

nastic1906

nyctinastic1906

seismonastic1912

thermonastic1936

1906 A. J. Ewart tr. W. Pfeffer Physiol. Plants III. 3 The curvatures produced by diffuse stimuli are termed ‘nastic’, while by epinasty, hyponasty, and paranasty, the sides are indicated which elongate on stimulation.

1929 J. C. Bose Growth & Tropic Movement Plants xx. 216 If the movement be nastic, then the closure or the opening movement will remain the same, whether the organ be held in normal position or upside down.

1965 P. Bell & D. Coombe tr. Strasburger's Textbk. Bot. (new ed.) 380 Nastic movements, depending on growth differences on the two sides of the organ concerned, are seen particularly clearly in the perianth segments of the many flowers which open or close according to the temperature.

1995 Plant Cell & Environment 18 818 We interpret these curvatures as being nastic, and related to the curvatures commonly reported to occur during clinostat rotation treatments.

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

单词	nastic
释义	nasticadj. Brit. /ˈnastɪk/, U.S. /ˈnæstɪk/ Origin: A borrowing from German, combined with an English element. Etymons: German nastisch , -ic suffix. Etymology: < German nast- (in nastisch (E. Strasburger Lehrb. der Bot. (ed. 6, 1904) I. ii. 221) < ancient Greek ναστός pressed together ( < νάσσειν to press, squeeze together, of uncertain origin + -τός , suffix forming verbal adjectives) + German -isch -ish suffix¹) + -ic suffix. Compare earlier epinastic adj., hyponasty n. Botany. Of a plant movement: caused by an external influence that does not affect its direction. ΘΚΠ the world > plants > part of plant > growth, movement, or curvature of parts > [adjective] > nastic nastic1906 nyctinastic1906 seismonastic1912 thermonastic1936 1906 A. J. Ewart tr. W. Pfeffer Physiol. Plants III. 3 The curvatures produced by diffuse stimuli are termed ‘nastic’, while by epinasty, hyponasty, and paranasty, the sides are indicated which elongate on stimulation. 1929 J. C. Bose Growth & Tropic Movement Plants xx. 216 If the movement be nastic, then the closure or the opening movement will remain the same, whether the organ be held in normal position or upside down. 1965 P. Bell & D. Coombe tr. Strasburger's Textbk. Bot. (new ed.) 380 Nastic movements, depending on growth differences on the two sides of the organ concerned, are seen particularly clearly in the perianth segments of the many flowers which open or close according to the temperature. 1995 Plant Cell & Environment 18 818 We interpret these curvatures as being nastic, and related to the curvatures commonly reported to occur during clinostat rotation treatments. This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022). < adj.1906
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