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'AB' can also refer to...




ab esse ad posse valet consequentia

A.B. Facey (1894—1982)

ab initio

ab initio gene prediction

ab initio protein structure prediction

ab intestato

A.B. Skhy

A/B structure

AB toxins


ab-initio calculation

Cadell ab Arthfael (c. 872—942) king of Gwent

Cadwallon ab Ieuaf

Crentsil, A.B., And The Ahenfo Band

Cynan ab Owain (b. c. 1120)

Dafydd ab Edmwnd (fl. 1450—1490) poet

Dafydd ab Ieuan ab Iorwerth (c. 1470—1498) abbot of Valle Crucis and bishop of St Asaph

Dafydd ab Owain (c. 1465—1513) abbot of Aberconwy and bishop of St Asaph

Dafydd ab Owain (d. 1175)


Gruffudd ab Ieuan ap Llywelyn Fychan (c. 1485—1553) poet

Gruffudd ab yr Ynad Coch (fl. 1282)

Hopcyn ap Tomas ab Einion (fl. c. 1327—1418) literary patron

Hywel ab Edwin (c. 974—1044) king of Deheubarth

Hywel ab Ieuaf (c. 915—985) king of Gwynedd

Hywel ab Owain Gwynedd (c. 1100—1170) prince of Gwynedd and poet


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Show all results sharing these subjects:

  • Maritime History
  • Warfare and Defence


Quick Reference

The abbreviated title for the rating of able seaman, indicating someone able to perform all the duties of a seaman on board ship. In the days of sail it was someone who could hand, reef, and steer, but today he or she must have many more maritime skills than that. The initials have been thought to refer to an ‘able-bodied’ seaman, but this is not so: they are merely the first two letters of ‘able’.

Subjects: Maritime History — Warfare and Defence.

Reference entries