chorda dorsalis

2 definitions found

chorda dorsalis - Collaborative International Dictionary of English v.0.48 :

  Notochord \No"to*chord\, n. [Gr. nw^ton the back + E. chord.]
     (Anat.)
     An elastic cartilagelike rod which is developed beneath the
     medullary groove in the vertebrate embryo, and constitutes
     the primitive axial skeleton around which the centra of the
     vertebrae and the posterior part of the base of the skull are
     developed; the chorda dorsalis. See Illust. of Ectoderm.
     [1913 Webster]

  Chorda \Chor"da\, n. [NL., fr. L. chorda. See Chord.] (Anat.)
     A cord.
     [1913 Webster]
  
     Chorda dorsalis. [NL., lit., cord of the back.] (Anat.) See
        Notochord.
        [1913 Webster]