Meaning of SKIM in English
■ verb ( ~s , ~ming , ~med )
1》 remove (a substance) from the surface of a liquid.
2》 move quickly and lightly over or on a surface or through the air.
↘throw (a flat stone) so that it bounces several times on the surface of water.
3》 read (something) quickly, noting only the important points.
↘( ~ over ) deal with or treat briefly or superficially.
4》 informal steal or embezzle (money) in small amounts over a period of time.
5》 [usu. as noun ~ming ] fraudulently copy (credit or debit card details) with a card swipe or other device.
1》 a thin layer of a substance on the surface of a liquid.
2》 an act of reading something quickly or superficially.
ME: back-form. from ~mer , or from OFr. escumer , from escume 'scum, foam'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004