| 单词 | bridgeboard | 
| 释义 | > as lemmasbridgeboard   bridgeboard  n. one of the long supporting timbers on either side of a wooden staircase, into which the ends of the steps are set; = stringboard n. at string n. Compounds 2. ΘΚΠ society > inhabiting and dwelling > inhabited place > a building > parts of building > stairs > 			[noun]		 > stringers stair-tree1374 sister1518 rail1679 string1711 carriage1758 rough string1819 notch-board1823 bridgeboard1842 stringer1883 1842    J. Gwilt Encycl. Archit. Gloss. 939  				Bridge Board, a board on which the ends of the steps of wooden stairs are fastened. 1939    Old-time New Eng. Jan. 110/2  				The bridge-board of the staircase is ornamented by a graceful scroll. 2011    N. S. Reed Place where Eelgrass Flows 60  				I wanted to climb the dingy attic stairs where curlicues of dust hugged the edges of tread and bridgeboard. < as lemmas | 
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