Ab′en Ezra (Ibn Ezra), a celebrated Jewish rabbi, born at Toledo about 1093, travelled in pursuit of knowledge in England, France, Italy, and Greece, and is supposed to have died in Rhodes about 1167. He is best known as a commentator on Scripture.

Abensberg (ä′bėns-berh), a village of Bavaria, in the Danube valley, below Ingolstadt, celebrated for Napoleon's victory over the Austrians, 20th April, 1809.

Abeoku′ta. See Abbeokuta.

Ab′er, a prefix in Celtic geographical proper names signifying the mouth or entrance of a river into the sea, or into another stream. It is used chiefly in Wales and Scotland, having the same meaning as inver.

Abera′von, a municipal borough of Wales in Glamorganshire, near the mouth of the Avon in Swansea Bay, embracing Aberavon proper and its harbour Port Talbot. There are collieries, ironworks, copper-works, &c. Since 1918 Aberavon gives its name to a parliamentary division of the county. Pop. (municipal borough) (1921), 15,370.

Aberbroth′ock. See Arbroath.

Abercarn′, an urban district or town of England, Monmouthshire, 10½ miles north-west of Newport, with collieries, ironworks, &c. Pop. (1921), 20,123.

Ab′ercrombie, John, M.D., a Scottish writer on medical and moral science, and an eminent physician, born in Aberdeen, 1781, died at Edinburgh in 1844. He graduated at the university of Edinburgh in 1803, and subsequently pursued his studies in London, returning to Edinburgh in 1804, where he acquired an extensive practice as a physician. Apart from medical treatises, he is known from his Inquiries concerning the Intellectual Powers and his Philosophy of the Moral Feelings.

Ab′ercrombie, Patrick, a Scottish historical writer and antiquary, born at Forfar, 1656; date of death uncertain. Educated at St. Andrews and abroad, he took the degree of M.D., and practised as a physician in Edinburgh. In 1685 he was appointed physician to James II. His chief work is Martial Atchievements of the Scots Nation, 2 vols. folio, 1711-6.

Ab′ercromby, Sir Ralph, a British general, born in 1734 in Clackmannanshire, Scotland. He entered the army in 1756 as cornet in the 3rd Dragoon Guards; and he gradually passed through all the ranks of the service until he became a major-general in 1787. He served as lieutenant-general in Flanders, 1793-5, and was then appointed commander-in-chief of the forces in the West Indies, where he captured the islands of Grenada, St. Lucia, St. Vincent, and Trinidad, with the settlements of Demerara and Essequibo. On his return in 1798 he was appointed commander-in-chief in Ireland; and he afterwards held a corresponding command in Scotland. His next and concluding service was in the expedition to Egypt, of which he was commander-in-chief. He landed, after a severe fight, at Aboukir, 8th March, 1801; and on the 21st of the same month the battle of Alexandria was fought, in which Sir Ralph was mortally wounded.