broomstraw adjective 1noun 1 adjective1 •Denoting a type of mechanical failure in which a material splits into fibrous strands.Mechanical fractures with broomstraw-like appearance were found at 16 separate locations on frames and intercostals — 1998 noun1 •Synonym of broomsedge (“Andropogon species”).how do I get rid of all this Broomsedge/Broomstraw? — 2019