This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Chiefly British An oarlock.

n. a pivot attached to the gunwale (outrigger in a sport boat) of a boat that supports and guides an oar, and provides a fulcrum for rowing; an oarlock (mostly US).

n. A contrivance or arrangement serving as a fulcrum for an oar in rowing. It consists sometimes of a notch in the gunwale of a boat, sometimes of a pair of pins between which the oar rests on the edge of the gunwale, sometimes of a single pin passing through the oar, or of a metal fork or stirrup pivoted in the gunwale and suporting the oar; same as oarlock.

n. One of the rings of masonry included in an arch having more than one ring.

n. A contrivance on a boat's gunwale in or on which the oar rests and swings freely in rowing.

In architecture, characterized by having its voussoirs in concentric rings, one closely adjusted to another. The rowlock arch of brick is one in which each ring of brick voussoirs is only the width of the brick, or about four inches, in depth.

n. a holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing

"Kevin Wilkinson's simple metal dinghy, propelled by a single scull from a rowlock at the stern, maintains one of the oldest crossings of the Mersey – now transferred to the canal because the nearby river itself is bridged."

holder   

becket rowlock   

oarlock   

oarlock    thole   

ambulation    seaway    jeroboam    thole    press-room    faller    sup    deep-water    ice-free    lower-deck