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  2. Opposite - Wikipedia

    en.wikipedia.org/wiki/Opposite

    The term antonym (and the related antonymy) is commonly taken to be synonymous with opposite, but antonym also has other more restricted meanings. Graded (or gradable) antonyms are word pairs whose meanings are opposite and which lie on a continuous spectrum (hot, cold).

  3. Diaeresis (prosody) - Wikipedia

    en.wikipedia.org/wiki/Diaeresis_(prosody)

    In poetic meter, diaeresis (/ d aɪ ˈ ɛr ə s ɪ s,-ˈ ɪər-/ dy-ERR-ə-siss, -⁠ EER-; also spelled diæresis or dieresis) has two meanings: the separate pronunciation of the two vowels in a diphthong for the sake of meter, and a division between feet that corresponds to the division between words.

  4. Luminescence - Wikipedia

    en.wikipedia.org/wiki/Luminescence

    As the definition does not fully describe the phenomenon, quantum mechanics is employed where it is defined as there is no change in spin multiplicity from the state of excitation to emission of light. [2] Phosphorescence, traditionally defined as persistent emission of light after the end of excitation. As the definition does not fully ...

  5. Luminous flame - Wikipedia

    en.wikipedia.org/wiki/Luminous_flame

    In the simplest case, the yellow flame is luminous due to small soot particles in the flame which are heated to incandescence. Producing a deliberately luminous flame requires either a shortage of combustion air (as in a Bunsen burner) or a local excess of fuel (as for a kerosene torch).

  6. Electrical resistance and conductance - Wikipedia

    en.wikipedia.org/wiki/Electrical_resistance_and...

    Also called chordal or DC resistance This corresponds to the usual definition of resistance; the voltage divided by the current R s t a t i c = V I. {\displaystyle R_{\mathrm {static} }={V \over I}.} It is the slope of the line (chord) from the origin through the point on the curve. Static resistance determines the power dissipation in an electrical component. Points on the current–voltage ...

  7. Iridescence - Wikipedia

    en.wikipedia.org/wiki/Iridescence

    Examples of iridescence include soap bubbles, feathers, butterfly wings and seashell nacre, and minerals such as opal. Pearlescence is a related effect where some or most of the reflected light is white. The term pearlescent is used to describe certain paint finishes, usually in the automotive industry, which actually produce iridescent effects.

  8. Incandescence (novel) - Wikipedia

    en.wikipedia.org/wiki/Incandescence_(novel)

    One review compared Incandescence to "a not particularly enthralling lecture on the process of scientific discovery, combined with the physics of a black hole". [4] Another reviewer described much of this criticism as "trite received opinion" and said the book had "hints of greatness and pleasing moments" but its structure was "a failed literary experiment" and ultimately rather dull.

  9. Antiphrasis - Wikipedia

    en.wikipedia.org/wiki/Antiphrasis

    Antiphrasis is the rhetorical device of saying the opposite of what is actually meant in such a way that it is obvious what the true intention is. [1] Some authors treat and use antiphrasis just as irony, euphemism or litotes. [2] When the antiphrasal use is very common, the word can become an auto-antonym, [3] having opposite meanings ...