<hw>Trooper</hw>, <i>n</i>. a mounted policeman. The use is transferred from the name for a private soldier in a cavalry regiment. The <i>Native troopers</i>, or <i>Black police</i>, in Queensland, are a force of aboriginal police, officered by white men.
1858. T. McCombie, `History of Victoria,' c. viii. p. 100:
"A violent effort [was] made by the troopers on duty to disperse an assemblage which occupied the space of ground in front of the hustings."
1864. J. Rogers, `New Rush,' p. 51:
"A trooper spies him snoring in the street."
1868. J. A. B., `Meta,' canto iii. ver. 20, p. 72:
"The felon crew . . . hard pressed by troopers ten."
<hw>Tropic-bird</hw>, <i>n</i>. The English name is applied because the bird is usually seen in the tropics. The species observed in Australia are—Red-tailed, <i>Phaeton rubricaudus</i>, Bodd.; White-tailed, <i>P. candidus</i>, Briss.
1848. J. Gould, `Birds of Australia,'vol. vii. pl. 73:
"<i>Phaeton Phoenicurus</i>, Gmel., Red-tailed Tropic Bird; New Holland Tropic Bird, Latham, `General History, vol. x. p. 448."