putty
Concise Oxford English Dictionary © 2008 Oxford University Press:
putty/ˈpʌti/
▶noun
- 1 a malleable paste, made from ground chalk and raw linseed oil, that gradually hardens and is used for sealing glass in window frames.
■ a malleable substance used as a filler, modelling material, etc.
- 2 a polishing powder, usually made from tin oxide, used in jewellery work.
– phrases
be (like) putty in someone's hands be easily manipulated by someone.
be (like) putty in someone's hands be easily manipulated by someone.
– origin C17: from Fr. potée, lit. ‘potful’.
'putty' also found in these Oxford entries:

