antiport

From anti- +‎ port.

antiport (plural antiports)

1. (cytology) A structure in a cell membrane that simultaneously transports different molecules or ions through the membrane in opposite directions.

• antiporter

antiport (third-person singular simple present antiports, present participle antiporting, simple past and past participle antiported)

1. To simultaneously transport different molecules or ions through a cell membrane in opposite directions.

antiport (plural antiports)

1. Obsolete form of anteport.
   • 1668, Paul Rycaut, “A True Relation of the Designs Managed by the Old Queen, Wife of Sultan Ahmet, ”, in The Present State of the Ottoman Empire. Containing the Maxims of the Turkish Politie, , London: John Starkey and Henry Brome, , →OCLC, page 15:

     he Viſier and Solyman Aga went to the Chamber where the King ſlept, and lifting up the Antiport, made a ſign of ſilence to the Ladies of the Guard , commanding by dumb motions that the Young Queen ſhould be awakened

   • 1678, Tho Smith, Remarks upon the Manners, Religion and Government of the Turks. , London: Moses Pitt, , →OCLC, pages 74–75:

     This like the Chappel at Mecca, they eſteem ſo holy, that it is only lawful for a Muſulman to enter into it. If a Chriſtian or Jew ſhould but lift up the Antiport, and ſet one ſtep into it, he profaned it,

   • 1735 August 13 (Gregorian calendar), “Letter II, and Last. From a Gentleman in Constantinople, to His Friend in London.”, in The Weekly Amusement: or, The Universal Magazine. , volume III, London: J. and T. Dormer , →OCLC, page 1000, column 2:

     Lifting up the antiport, and advancing a little forward, I could not perceive the leaſt noiſe;

   • 1794, Pat Russell, “Of the Inhabitants in General”, in Alex Russell, Pat. Russell, The Natural History of Aleppo. , 2nd edition, volume I, London: G G and J Robinson, , →OCLC, page 146:

     n bed chambers, and other ſmall rooms, where the air is excluded by window curtains, cloſe doors, and antiports, it is then moſt dangerous when the greateſt pains have been taken to burn it clear;