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

petrel \pe"trel\, n. f. p'etrel; a dim. of the name peter, l.
   petrus, gr. pe`tros a stone --john i. 42; -- probably so
   called in allusion to st. peter's walking on the sea. see
   petrify. zool.
   any one of numerous species of longwinged sea birds belonging
   to the family procellaridae. the small petrels, or mother
   carey's chickens, belong to oceanites, oceanodroma,
   procellaria, and several allied genera.
   1913 webster

   diving petrel, any bird of the genus pelecanoides. they
      chiefly inhabit the southern hemisphere.

   fulmar petrel, giant petrel. see fulmar.

   pintado petrel, the cape pigeon. see under cape.

   pintado petrel, any one of several small petrels,
      especially procellaria pelagica, or mother carey's
      chicken, common on both sides of the atlantic.
      1913 webster
see also:
petrify procellaridae oceanites oceanodroma procellaria diving petrel 
pelecanoides fulmar petrel giant petrel fulmar pintado petrel 
cape procellaria pelagica 

[2] : WordNet (r) 2.0

giant petrel
     n : large brownish petrel chiefly of antarctic seas syn: giant
         fulmar, macronectes giganteus
see also:
giant fulmar macronectes giganteus 

Giant >> G Words
Giant, definition of term: Giant
giant_pag1.html

Petrel >> P Words
Petrel, definition of term: Petrel
petrel_pag1.html

Giant Star >> G Words
Giant Star, definition of term: Giant Star
giant+star_pag1.html

Giant Squid >> G Words
Giant Squid, definition of term: Giant Squid
giant+squid_pag1.html

Giant Panda >> G Words
Giant Panda, definition of term: Giant Panda
giant+panda_pag1.html