pumice

FREQ #43954

n. 轻石, 浮石 vt. 用浮石磨光

发音

其它 /ˈpʌm.ɪs/

词形变化

pumices 复数 pumiced pumices 三单 pumices pumicing pumicing 现在分词 pumiced 过去式 pumiced 过去分词

释义与例句

n.
  1. 1.

    A light, porous type of pyroclastic igneous rock, formed during explosive volcanic eruptions when liquid lava is ejected into water or air as a froth containing masses of gas bubbles, which are frozen into the rock as the lava solidifies.

    浮石

    浮岩

    可数 不可数
v.
  1. 1.

    To abrade or roughen with pumice.

    及物

词汇关系

名词

同义词 1

pumice stone

上位词 2

rock stone
动词

上位词 1

rub

相关短语

pumice stone n. 浮石, 轻石 pumice stones pumice raft pumice rafts

词源

From Anglo-Norman and Old French pomis (“pumice stone”), from Latin pūmex (“pumice stone”). Doublet of pounce.

来源：wiktionary