Heliac

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Heliac \He"li*ac\, a.
     Heliacal.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:



  heliac
       adj : pertaining to or near the sun; especially the first rising
             of a star after and last setting before its
             invisibility owing to its conjunction with the sun;
             "the heliacal rising of the Dog Star"; "the heliacal or
             Sothic year is determined by the heliacal rising of
             Sothis (the Egyptian name for the Dog Star)" [syn: {heliacal}]