Term: protoavis: most primitive avian type known; extinct bird of the Triassic having bird-like jaw and hollow limbs and breastbone with dinosaur-like tail and hind limbs
Broader: bird: warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings | Unrelated: volume: the amount of 3-dimensional space occupied by an object
Broader: bird: warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings | Unrelated: striving: an effortful attempt to attain a goal
Broader: bird: warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings | Unrelated: jitters: extreme nervousness
Broader: bird: warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings | Unrelated: pointillism: a school of painters who used a technique of painting with tiny dots of pure colors that would blend in the viewer's eye; developed by Georges Seurat and his followers late in 19th century France
Broader: bird: warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings | Unrelated: chicken: a domestic fowl bred for flesh or eggs; believed to have been developed from the red jungle fowl
Broader: bird: warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings | Unrelated: specialist: an expert who is devoted to one occupation or branch of learning
Broader: bird: warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings | Unrelated: polygonum: diverse genus of herbs or woody subshrubs of north temperate regions
Broader: bird: warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings | Unrelated: zigzag goldenrod: a variety of goldenrod
Broader: bird: warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings | Unrelated: oblique vein of the left atrium: a tributary of the coronary sinus; on the posterior wall of the left atrium
Broader: bird: warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings | Unrelated: contrarian: an investor who deliberately decides to go against the prevailing wisdom of other investors