(chemistry, obsolete) sodium carbonate

A soft earthy mineral, of a brownish colour, used in crayon painting.

The tree that bears the soapberry.

A pipe with an expansion at one end to receive the end of a connecting pipe.

A bolt that passes through a thimble that is placed between the parts connected by the bolt.

(US) A pole armed with iron fixed on by means of a socket, and used to propel boats, etc.

A form of socialism in which individual aggression is employed to maintain the social status quo and the privileges held by specific people or groups.

Alternative form of café society

Especially from the late-19th century through the mid-20th century in Europe and America, a culture characterized by continual socializing in bistros, coffee shops, and nightclubs, sometimes extravagantly frivolous and sometimes intensely intellectual in nature but always high-spirited.

A method of teaching through questions rather than lectures.