• Webster's Revised Unabridged Dictionary
    • n Proa (Naut) A sailing canoe of the Ladrone Islands and Malay Archipelago, having its lee side flat and its weather side like that of an ordinary boat. The ends are alike. The canoe is long and narrow, and is kept from overturning by a cigar-shaped log attached to a frame extending several feet to windward. It has been called the flying proa, and is the swiftest sailing craft known.
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Century Dictionary and Cyclopedia
    • n proa A kind of Malay vessel remarkable for swiftness, formerly much used by pirates in the Eastern Archipelago. Proas are found chiefly within the region of the trade-winds, to which by their construction they are peculiarly adapted; for, being formed with stem and stern equally sharp, they never require to be turned round in order to change their course, but sail equally well in either direction. The lee side is flat and in a straight line from stem to stern, and acts as a lee-board or center-board; but the weather side is rounded as in other vessels. This shape, with their small breadth, would render them very liable to heel over, were it not for the outrigger, which is used on either side or on both. The proa is fastened together with coir yarns, is extremely light, and carries an enormous triangular sail. Also called flying proa.
    • ***
Chambers's Twentieth Century Dictionary
    • n Proa prō′a a small and swift Malay sailing-vessel, with both ends equally sharp.
    • ***


Webster's Revised Unabridged Dictionary
Malay prā,, prāh,
Chambers's Twentieth Century Dictionary
Malay prau.


In literature:

Did she scour the Pacific, competing with the Malay proas which still infest it?
"The Mysterious Island" by Jules Verne
Half an hour later the proa's cargo of sago and trepang, as well as a doubtful-minded compass, was in the Haliotis.
"The Day's Work, Volume 1" by Rudyard Kipling
The natives lay in their proas round us; to whom I showed beads, knives, glasses, to allure them to come nearer.
"Early Australian Voyages" by John Pinkerton
It was the beginning of the monsoon, and we went bowling down towards Port Darwin, a crowd of Malay proas in our wake.
"Mrs. Falchion, Complete" by Gilbert Parker
Indian proas, and their traffic.
"A Continuation of a Voyage to New Holland" by William Dampier
The pinnace came back with a Spaniard and four Indians, who were the people taken in the proa.
"Anson's Voyage Round the World" by Richard Walter
Here is that blessed proa and junk, and a whole fleet of pirates after us!
"Afloat at Last" by John Conroy Hutcheson
While we were just shoving off, a dozen or more of these proas came round us.
"Peter Trawl" by W. H. G. Kingston
Did she scour the Pacific, competing with the Malay proas which still infest it?
"The Secret of the Island" by W.H.G. Kingston (translation from Jules Verne)
In a very few minutes the proa, whose fabric was of the slightest materials, filled, and went down.
"The King's Own" by Captain Frederick Marryat
As soon as it was day they saw a large proa, with about sixty men in her, and six smaller proas.
"Notable Voyagers" by W.H.G. Kingston and Henry Frith
Commander Farquhar seeing two large proas escaping seaward, ordered the steam-tender to chase.
"How Britannia Came to Rule the Waves" by W.H.G. Kingston
Even a Malay proa, manned by pirates, would have been welcomed.
"Owen Hartley; or, Ups and Downs" by William H. G. Kingston
The smaller boats which had been towed behind the larger craft were cast off and brought alongside the chief's proa.
"Anting-Anting Stories" by Sargent Kayme
Then I fired, but there was no answering sign or sound on board the proa to tell that my shot had been effective.
"The Cruise of the "Esmeralda"" by Harry Collingwood
Not one o' them bamboo an' string-tied proas, or sich?
"Gold Out of Celebes" by Aylward Edward Dingle
They passed many towns and saw many proas within the harbors.
"Thrilling Narratives of Mutiny, Murder and Piracy" by Anonymous
We lie to, the proas come nearer.
"In Eastern Seas" by J. J. Smith
During the afternoon such goods as were deemed necessary were transferred to the proa, which lay at anchor in the lagoon.
"Adrift on the Pacific" by Edward S. Ellis
This proa he now launched in the lagoon, and aboard of it he stored his loot.
"Where the Pavement Ends" by John Russell

In science:

Neutrino proton elastic scattering measures the proA through elastic Z0 exchange. ton’s weak axial charge g (Z ) Because of anomaly cancellation in the Standard Model the weak neutral current couples to the combination u − d + c − s + t − b, viz. 2 (cid:26) Xq=u,c,t − Xq=d,s,b (cid:27) ¯qγµ γ5 q .
The Spin Structure of the Proton