Halfpace n. : A platform of a staircase where the stair turns back in exactly the reverse direction of the lower flight. See Quarterpace.

Example:


Taxonomy
halfpace, platform, stair, quarterpace, Dictionary, pace, staircase, flight, Unanswered questions, Webster 1913, United States, landing, Search, Tutor, raised floor, dais, eSpindle, spelling and vocabulary.

Defination from the web:
... Word Tutor: halfpace. Top. Home > Library > Literature & Language > Spelling & Usage. IN BRIEF: n - A raised floor or dais or a platform at the top of steps. ...