Dictionary    Maps    Thesaurus    Translate    Advanced >   


Tip: Click Thesaurus above for synonyms. Also, follow synonym links within the dictionary to find definitions from other sources.

1. WordNet® 3.0 (2006)
sinus
    n 1: an abnormal passage leading from a suppurating cavity to
         the body surface [syn: fistula, sinus]
    2: any of various air-filled cavities especially in the bones of
       the skull
    3: a wide channel containing blood; does not have the coating of
       an ordinary blood vessel [syn: venous sinus, sinus]

2. The Collaborative International Dictionary of English v.0.48
Sinus \Si"nus\, n.; pl. L. Sinus, E. Sinuses. [L., a bent
   surface, a curve, the folds or bosom of a garment, etc., a
   bay. Cf. Sine, n.]
   1. An opening; a hollow; a bending.
      [1913 Webster]

   2. A bay of the sea; a recess in the shore.
      [1913 Webster]

   3. (Anat. & Zool.) A cavity; a depression. Specifically:
      (a) A cavity in a bone or other part, either closed or
          with a narrow opening.
      (b) A dilated vessel or canal.
          [1913 Webster]

   4. (Med.) A narrow, elongated cavity, in which pus is
      collected; an elongated abscess with only a small orifice.
      [1913 Webster]

   5. (Bot.) A depression between adjoining lobes.
      [1913 Webster]

   Note: A sinus may be rounded, as in the leaf of the white
         oak, or acute, as in that of the red maple.
         [1913 Webster]

   Pallial sinus. (Zool.) See under Pallial.

   Sinus venosus. [L., venous dilatation.] (Anat.)
      (a) The main part of the cavity of the right auricle of
          the heart in the higher vertebrates.
      (b) In the lower vertebrates, a distinct chamber of the
          heart formed by the union of the large systematic
          veins and opening into the auricle.
          [1913 Webster]

Thesaurus Results for Sinus:

1. Moby Thesaurus II by Grady Ward, 1.0
alveolation, alveolus, antrum, arc, armpit, basin, bow, bowl, catacaustic, catenary, caustic, cavity, circle, concave, concavity, conchoid, crater, crook, crypt, cup, curl, curve, depression, diacaustic, dip, ellipse, festoon, fold, follicle, funnel chest, hole, hollow, hollow shell, hook, hyperbola, lacuna, lituus, parabola, pit, pocket, punch bowl, scoop, shell, sink, socket, tracery, trough, vug
Common Misspellings >
Most Popular Searches: Define Misanthrope, Define Pulchritudinous, Define Happy, Define Veracity, Define Cornucopia, Define Almuerzo, Define Atresic, Define URL, Definitions Of Words, Definition Of Get Up, Definition Of Quid Pro Quo, Definition Of Irreconcilable Differences, Definition Of Word, Synonyms of Repetitive, Synonym Dictionary, Synonym Antonyms. See our main index and map index for more details.

©2011-2024 ZebraWords.com - Define Yourself - The Search for Meanings and Meaning Means I Mean. All content subject to terms and conditions as set out here. Contact Us, peruse our Privacy Policy