parallelism

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The quality or condition of being parallel.
• noun Correspondence or similarity.
• noun Grammar The use of identical or equivalent syntactic constructions in corresponding clauses or phrases.
• noun Philosophy The doctrine that to every mental change there corresponds a concomitant but causally unconnected physical alteration.

from The Century Dictionary.

• noun The opinion that the relation between the brain and the mind, although it is one of concomitant variation, is not the relation of cause and effect; the opinion that mental process and brain process are parallel events, and that they do not interact.
• noun In evolution, the independent development of similar species or types of animals in different regions.
• noun A parallel position, in any sense of the word parallel.
• noun The retention by a moving line of positions parallel to one another.
• noun Analogy.
• noun Specifically The correspondence resulting from the repetition of the same sentiment or imagery, sense, or grammatical construction: a marked feature of Hebrew poetry.
• noun A parallel or comparison.

from the GNU version of the Collaborative International Dictionary of English.

• noun The quality or state of being parallel.
• noun Resemblance; correspondence; similarity.
• noun Similarity of construction or meaning of clauses placed side by side, especially clauses expressing the same sentiment with slight modifications, as is common in Hebrew poetry; e. g.: -- At her feet he bowed, he fell: Where he bowed, there he fell down dead. Judg. v. 27.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The state or condition of being parallel; agreement in direction, tendency, or character.
• noun The state of being in agreement or similarity; resemblance, correspondence, analogy.
• noun A parallel position; the relation of parallels.
• noun rhetoric, grammar The juxtaposition of two or more identical or equivalent syntactic constructions, especially those expressing the same sentiment with slight modifications, introduced for rhetorical effect.
• noun philosophy The doctrine that matter and mind do not causally interact but that physiological events in the brain or body nonetheless occur simultaneously with matching events in the mind.
• noun law In antitrust law, the practice of competitors of raising prices by roughly the same amount at roughly the same time, without engaging in a formal agreement to do so.
• noun biology Similarity of features between two species resulting from their having taken similar evolutionary paths following their initial divergence from a common ancestor.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun similarity by virtue of corresponding