subductedadj.
/səbˈdʌktd/, /ˌsʌbˈdʌktd/, U.S. /səbˈdəktəd/ 1. That has been removed. Now rare.
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1850 W. H. C. Bartlett Elem. Nat. Philos. i. v. 511 If without altering its [sc. a solid's] volume, we conceive a portion of matter taken from its interior..the weight of the solid will be diminished by that of the subducted matter.
1890 Trans. Kansas Acad. Sci. 1889 12 i. 66 The increments may be esteemed as added or affirmative moments, and the decrements as subducted or negative ones.
2. Geology. Of a crustal plate, or section of the earth's crust: that has undergone subduction (subduction n. 6).
ΘΚΠ
the world > the earth > structure of the earth > formation of features > tectonization or diastrophism > [adjective] > movement of lithospheric plates
subducted1971
subducting1971
subductive1972
obducted1974
1971 W. R. Dickinson in Earth & Planetary Sci. Lett. 10 169/1 The subducted materials, depressed by plate descent and thickened by tectonic stacking, must rise isostatically to cause uplift.
1980 J. G. Navarra Earth, Space, & Time i. 17/1 The subducted plate is believed to be more dense than the mantle into which it plunges because it is colder.
2006 D. H. Erwin Extinction ii. 43 The subducted slab melts and the large amount of silica produces a thick, gummy magma that often erupts explosively.
This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).
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adj.1850