pinn[ae]

1 definition found

pinn[ae] - Collaborative International Dictionary of English v.0.48 :

  Pinna \Pin"na\, n.; pl. Pinn[ae], E. Pinnas. [L., a
     feather.]
     1. (Bot.)
        (a) A leaflet of a pinnate leaf. See Illust. of Bipinnate  leaf
            , under Bipinnate.
        (b) One of the primary divisions of a decompound leaf.
            [1913 Webster]
  
     2. (Zool.) One of the divisions of a pinnate part or organ.
        [1913 Webster]
  
     3. [L. pinna, akin to Gr. ?.] (Zool.) Any species of Pinna,
        a genus of large bivalve mollusks found in all warm seas.
        The byssus consists of a large number of long, silky
        fibers, which have been used in manufacturing woven
        fabrics, as a curiosity.
        [1913 Webster]
  
     4. (Anat.) The auricle of the ear. See Ear.
        [1913 Webster]