subductions

Noun

subduction (countable and uncountable, plural subductions)

1. The action of being pushed or drawn beneath another object.
2. The process of one tectonic plate moving beneath another and sinking into the mantle at a convergent plate boundary.
   • Therefore, both a mantle plume and also the subductions of the oceanic plates may have mutually contributed to create the magmatic zone.2000, Ki-Hong Chang, Sun-Ok Park, Soobum Chang, “Upper Mesozoic unconformity-bounded units of Korean Peninsula with Koguryo Magmatic Province”, in H. Okada, N. J. Mateer, editors, Cretaceous...
3. The act of subducting or taking away.
   • threatened the subduction of his own presence1651 (indicated as 1652), Joseph Hall, “The Invisible World Discovered to Spiritual Eyes, and Reduced to Useful Meditation. […]”, in Josiah Pratt, editor, The Works of the Right Reverend Father in...
4. Arithmetical subtraction.
   • the other Operation of Arithmetick , namely , Subductiona. 1677 (date written), Matthew Hale, The Primitive Origination of Mankind, Considered and Examined According to the Light of Nature, London: […] William Godbid, for William Shrowsbery, […]...
5. A surjection between diffeological spaces such that the target is identified as the pushforward of the source.
   • Accordingly, a diffeological principal S¹-bundle over a diffeological space X is a subduction π : P → X and a smooth map τ satisfying the same conditions; see [30] for a thorough discussion.2012, Konrad Waldorp, “A construction of string 2-group models using a transgression-regression technique”, in Clara L. Aldana, Maxim Braverman, Bruno Iochum, Carolina Neira Jiménez, editors...