quadrant

• quadraunt (obsolete)

• (Received Pronunciation) enPR: kwŏdʹrənt, IPA^(key): /ˈkwɒd.ɹənt/
• (General American) enPR: kwŏdʹrənt, IPA^(key): /ˈkwɑd.ɹənt/

• Audio (Southern England):

  (file)

From Middle English quadrant, from Old French cadran, quadrant and its etymon Latin quadrāns, -antis (“fourth part of something, quarter”).^[1] Doublet of quadrans.

quadrant (plural quadrants)

1. One of the four sections made by dividing an area with two perpendicular lines.
   • 2007, Xavier: Renegade Angel, season 1, episode 4, spoken by Xavier (Vernon Chatman):

     Kids, I swear, I'm gonna love all of you, and equally. I'll be dividing my love into seven equal sections, or "Love Quadrants". Each quadrant will be worth 15 "Love Units" represented by these small brass marbles. You may use these marbles as currency amongst yourselves. Collect 35 "Love Units", you can trade those in for a beach towel with my face on it.

   • 2023, PLUMMCORP RECORDS, 02:45 from the start, in dracula flow 3‎^[1]:

     Ops wanted some initiative, blew up their entire quadrant. I'm movin' like Oppenheimer.

2. (mathematics) One of the four regions of the Cartesian plane bounded by the x-axis and y-axis.
4. (geometry) One fourth of a circle or disc; a sector with an angle of 90°.
5. (nautical) A measuring device with a graduated arc of 90° used in locating an altitude.
6. (college basketball) One of the four categories of team wins and losses, as categorized by strength of schedule.

• octant
• sextant

From Middle English quadrant, quadrante, from Latin quadrātum; form influenced by Etymology 1.^[2] Doublet of quadrat and quadrate.

quadrant (plural quadrants)

1. (obsolete) A square or quadrangle.
   • 1852, Agnes Strickland, Lives of the Queens of Scotland and English Princesses, page 52:

     There is an outcourt or quadrant, whereof one side is a gallery to walk in, being in length six hundred feet.

Borrowed from Latin quadrantem (“fourth part of something, quarter”).

• IPA^(key): (Central) [kwəˈðɾan]
• IPA^(key): (Balearic) [kwəˈðɾant]
• IPA^(key): (Valencia) [kwaˈðɾant]

quadrant m (plural quadrants)

1. quadrant

• “quadrant”, in Diccionari de la llengua catalana [Dictionary of the Catalan Language] (in Catalan), second edition, Institute of Catalan Studies [Catalan: Institut d'Estudis Catalans], April 2007
• “quadrant”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2025
• “quadrant” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
• “quadrant” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.

quadrant

1. gerund of quadrar

Borrowed from Latin quadrantem (“fourth part of something, quarter”).

• IPA^(key): /ka.dʁɑ̃/

• Audio:

  (file)

quadrant m (plural quadrants)

1. quadrant

• “quadrant”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

quadrant

1. third-person plural present active indicative of quadrō