floss

名词 floss:

1. a soft loosely twisted thread used in embroidery
2. a soft thread for cleaning the spaces between the teeth
   同义词：dental floss

动词 floss:

1. use dental floss to clean

1. This kind of floss is used for embroidery.
   这种丝线用来刺绣。

floss

n.（名词）
Dental floss.
牙线
Short or waste silk fibers, especially from the outer surface of the cocoon of a silkworm.
粗丝：尤指蚕茧的外层蚕衣的短或无用的丝纤维
Soft, loosely twisted thread, as of silk or cotton, used in embroidery.
丝线，棉线：用于刺绣的柔软而松的丝线，如蚕丝或棉线
A downy or silky fibrous substance, such as corn silk or silk cotton.
蚕丝，棉丝：一种柔软的或丝般的纤维物质，例如穗丝或棉丝
v.（动词）
flossed,floss.ing,floss.es
v.tr.（及物动词）
To clean between (teeth) with dental floss.
用牙线清洁（牙齿）
v.intr.（不及物动词）
To use dental floss.
使用牙线

来源：
Perhaps alteration of French floche [tuft of wool]
可能为 法语 floche的变化 [一簇羊毛]
from Old French floc, floche
源自 古法语 floc, floche
from Latin floccus
源自 拉丁语 floccus

【引伸】
floss.er
n.（名词）