(neuroscience, anatomy) A type of pyramidal neuron within the hippocampus that becomes active when an animal enters a particular place in its environment (known as the place field).

plural of necessary place

(euphemistic, obsolete) A place used for the business of urination and defecation: an outhouse or lavatory.

plural of public place

A space that is generally open and accessible to people.

plural of purging place

(premodern medicine, obsolete) A body part where excess humors are expelled. / (obsolete) A place where the body is purged of waste: a latrine; an outhouse; a lavatory.

plural of happy place

(idiomatic) A mental visualization of a pleasant location, to avoid thinking or dealing with something unpleasant or painful.

plural of market place