word:parallel - parallelogram
By: Noemi La Gamba, Liceo Scientifico Statale "G. Berto" (IT) & Elisabetta Suppa, Liceo Scientifico Statale "G. Berto" (IT)
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The word “PARALLEL”
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Word definition(s)
In geometry, the adjective parallel refers to a coplanar straight lines, or planes, having no common point, or a due curve, which maintain the constant distance at each point. For the extension the term applies to everything that extends and proceeds in the same direction as another entity, respect for this always the same distance.
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Word origin
The meaning of parallel is connected to Euclid's definition of straight lines p. in a plane, according to which two are parallel if two of their prolonged parts never meet. To indicate that two straight lines r, s are p., We use to write r∥s (we read: r is p. A s); similarly between two floors or between straight line and floor. Two coincident spaces are also considered parallel
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Word origin /peculiarities
parallèl (ant. paralèll) adj. and s. m. [from the Latin parallelus, Greek παράλληλος, composed of παρά "near, long" and ἄλληλος (used only in plur.) "each other"]
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Derivates
From the word parallel derive the words parallelism, parallel, parallelogram and parallelepiped.
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Pronunciation
English: pa·ruh·lel
Italian: pa-ral-lè-lo
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Phrases
-Two parallel lines have not point in common.
-The bases of the trapezium are parallel.
-Thales' theorem states that a bundle of parallel lines cut by two transversals identify segments that are directly proportional.
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The word “PARALLELOGRAM”
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Definition
A parallelogram is a quadrilateral with opposite parallel and congruent sides.
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Pronunciations
English: pa·al·lelo·gram
Italian: pa·ral·le·lo·gram·ma
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Etymology
The word parallelogram derives from the late Latin “parallelogrammum”, which derives from the Greek “παραλληλόγραμμον”, composed of “παράλληλος” that is "parallel" and “γραμμή” or "line, geometric figure".
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Idioms and phrases
AB = DC; AD = B
A = C; B = D
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Idioms and phrases
in parallel
Simultaneously with, in conjunction with, or in the same manner as someone or something.
Ann wanted to pursue her own career in parallel with her husband’s.
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Pronunciations
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Pronunciations
Italian: /paralleloˈgramma/
Spanish: \pa.ra.le.lo.ˈɡra.mo\
German: [paʁaˌleloˈɡʁam]
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Sources:
https://idioms.thefreedictionary.com/parallel
https://en.wikipedia.org/wiki/Parallel_(geometry)
https://en.wiktionary.org/wiki/%CF%80%CE%B1%CF%81%CE%AC%CE%BB%CE%BB%CE%B7%CE%BB%CE%BF%CF%82
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