The Collaborative International Dictionary of English v.0.48:

Chlamydomonadaceae \Chlamydomonadaceae\ prop. n.
   A natural family of green algae some of which are colored red
   by hematochrome.

   Syn: family Chlamydomonadaceae.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Chlamydomonadaceae
    n 1: green algae some of which are colored red by hematochrome
         [syn: Chlamydomonadaceae, family Chlamydomonadaceae]