GNU Collaborative International Dictionary of English

Found one definition 

  1.       

    Phalanx , n.; pl. Phalanxes , L. Phalanges . [L., from Gr. φάλαγξ.]
    1. (Gr. Antiq.) A body of heavy-armed infantry formed in ranks and files close and deep. There were several different arrangements, the phalanx varying in depth from four to twenty-five or more ranks of men. “In cubic phalanx firm advanced.” 
      Milton.

      1913 Webster
      The Grecian phalanx, moveless as a tower.
      Pope.

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    2. Any body of troops or men formed in close array, or any combination of people distinguished for firmness and solidity of a union.
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      At present they formed a united phalanx.
      Macaulay.

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      The sheep recumbent, and the sheep that grazed,
      All huddling into phalanx, stood and gazed.
      Cowper.

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    3. A Fourierite community; a phalanstery.
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    4. (Anat.) One of the digital bones of the hand or foot, beyond the metacarpus or metatarsus; an internode.
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    5. [pl. Phalanges.] (Bot.) A group or bundle of stamens, as in polyadelphous flowers.
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