(psychology) An object, such as a security blanket or stuffed toy, used by a young child to self-soothe and cope with separation from a parent or other attachment figure.

plural of transition map

An optional one-year school programme that can be taken in the year after the Junior Certificate in Ireland. / A student currently doing a transition year.

(differential geometry) Synonym of transition function.

plural of transition year / (Ireland, slang) Students doing a transition year.

(physics) The temperature below which an amorphous material is a glassy solid and above which it is a viscous liquid

plural of bus rapid transit

plural of glass transition temperature

(chemistry) A poor metal, usually including gallium, indium, tin, thallium, lead, and bismuth, also known as B-subgroup metals, other metals, and p-block metals.

plural of post-transition metal