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The Collaborative International Dictionary
Alineation

Alineation \A*lin`e*a"tion\, n. See Allineation.

Alineation

Allineation \Al*lin`e*a"tion\, Alineation \A*lin`e*a"tion\, n. Alignment; position in a straight line, as of two planets with the sun.
--Whewell.

The allineation of the two planets.
--C. A. Young.

Wiktionary
alineation

n. (alternative form of allineation English)