a shrub or tree which yields light porous timber, in particular 塞子木(木材);轻木(木材),尤指
a small American tree which produces timber used for fishing floats (Leitneria floridana, family Leitneriaceae) a similar tree native to New Zealand (Entelea arborescens, family Tiliaceae) 佛罗里达塞子木(拉丁名Leitrevia flovidana,塞子木科) 原产新西兰的相似树木乔状恩特勒椴(拉丁名Entelea arborescens,椴树科)