baluster

English Thesaurus

1. one of a number of closely spaced supports for a railing (noun.artifact)

hypernym	:	support,
definition	:	any device that bears the weight of another thing (noun.artifact)

part meronym	:	balusters, balustrade, banister, bannister, handrail,
definition	:	a railing at the side of a staircase or balcony to prevent people from falling (noun.artifact)