Orni*tho*del"phid

from The Collaborative International Dictionary of English v.0.48

Ornithodelphia \Or*ni`tho*del"phi*a\, n. pl. [NL., fr. Gr.
   'o`rnis + delfy`s the womb.]
   Same as {Monotremata}. -- {Or`ni*tho*del"phid}, a.
   [1913 Webster]