different between subtraction vs subduction
subtraction
English
Alternative forms
- substraction (obsolete)
Etymology
Borrowed from Late Latin subtractio, subtractionis.
Pronunciation
- IPA(key): /s?b?t?æk??n/
- Rhymes: -æk??n
Noun
subtraction (countable and uncountable, plural subtractions)
- (arithmetic, uncountable) The process of subtracting a number from another.
- (arithmetic, countable) A calculation involving subtracting.
- The teacher has set us ten subtractions to do by tomorrow.
- The removal of something.
- The subtraction of the wealth from the economy will result in recession.
Related terms
- subtract
Translations
See also
- addition, summation: (augend) + (addend) = (summand) + (summand) = (sum, total)
- subtraction: (minuend) ? (subtrahend) = (difference)
- multiplication: (multiplier) × (multiplicand) = (factor) × (factor) = (product)
- division: (dividend) ÷ (divisor) = (quotient), remainder left over if divisor does not divide dividend
- minus sign
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subduction
English
Etymology
From Latin subductio; see Latin sub, ductio.
Pronunciation
- (Received Pronunciation) IPA(key): /s?b?d?k??n/
Noun
subduction (countable and uncountable, plural subductions)
- The action of being pushed or drawn beneath another object.
- (geology) The process of one tectonic plate moving beneath another and sinking into the mantle at a convergent plate boundary.
- 2000, Ki-Hong Chang, Sun-Ok Park, Soobum Chang, Upper Mesozoic unconformity-bounded units of Korean Peninsula with Koguryo Magmatic Province, H. Okada, N. J. Mateer (editors), Cretaceous Environments of Asia, Elsevier, page 108,
- Therefore, both a mantle plume and also the subductions of the oceanic plates may have mutually contributed to create the magmatic zone.
- 2003, Peter D. Clift, Hans Schouten, Amy E. Draut, A general model for arc-continent collision and subduction polarity reversal from Taiwan and the Irish Caledonides, Robert D. Larter, Philip T. Leat (editors), Intra-oceanic Subduction Systems: Tectonic and Magmatic Processes, The Geological Society, page 91,
- Evidence for a subduction polarity flip is clear in the Irish Caledonides, where the S-dipping slab beneath the Lough Nafooey arc (Dewey & Ryan 1990; Clift & Ryan 1994) became a N-dipping subduction zone after the Grampian Orogeny.
- 2012, Beth Shaw, Active Tectonics of the Hellenic Subduction Zone, Springer, page 61,
- Earthquakes on the subduction interface itself are low-angle thrusts in the depth range 15–45 km, generally reaching a maximum depth of 20 km in the west and 45 km in the centre of the arc, near Crete.
- 2000, Ki-Hong Chang, Sun-Ok Park, Soobum Chang, Upper Mesozoic unconformity-bounded units of Korean Peninsula with Koguryo Magmatic Province, H. Okada, N. J. Mateer (editors), Cretaceous Environments of Asia, Elsevier, page 108,
- The act of subducting or taking away.
- 1659, Joseph Hall, The Invisible World, Discovered to Spirituall Eyes, and Reduced to Usefull Meditation
- threatened the subduction of his own presence
- 1659, Joseph Hall, The Invisible World, Discovered to Spirituall Eyes, and Reduced to Usefull Meditation
- Arithmetical subtraction.
- 1677, Matthew Hale, The Primitive Origination of Mankind, Considered and Examined According to the Light of Nature
- the other Operation of Arithmetick , namely , Subduction
- 1677, Matthew Hale, The Primitive Origination of Mankind, Considered and Examined According to the Light of Nature
- (mathematics, mathematical analysis) A surjection between diffeological spaces such that the target is identified as the pushforward of the source.
- 2012, Konrad Waldorp, A construction of string 2-group models using a transgression-regression technique, Clara L. Aldana, Maxim Braverman, Bruno Iochum, Carolina Neira Jiménez (editors), Analysis, Geometry, and Quantum Field Theory, American Mathematical Society, page 107,
- Accordingly, a diffeological principal S1-bundle over a diffeological space X is a subduction ? : P ? X and a smooth map ? satisfying the same conditions; see [30] for a thorough discussion.
- 2013, Patrick Iglesias-Zemmour, Diffeology, American Mathematical Society, page 59,
- Subductions (art. 1.46) express a global behavior of some surjections. As we localized the notion of induction and then obtained the notion of local induction (art. 2.15), the notion of subduction can be localized, or refined, as well, and leads to the concept of local subduction. Exercise 61, p. 60, illustrates the case where a subduction is not everywhere a local subduction.
- 2012, Konrad Waldorp, A construction of string 2-group models using a transgression-regression technique, Clara L. Aldana, Maxim Braverman, Bruno Iochum, Carolina Neira Jiménez (editors), Analysis, Geometry, and Quantum Field Theory, American Mathematical Society, page 107,
Coordinate terms
- obduction
Derived terms
- subduction zone
Related terms
- subduct
Translations
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