WordReference Random House Unabridged Dictionary of American English © 2026
pre•form
(v. prē′fôrm′;n. prē′fôrm′),USA pronunciation v.t.
n.
- to form beforehand.
- to determine or decide beforehand:to preform an opinion.
- to shape or fashion beforehand:to preform a mold.
n.
- biscuit (def. 5).
- any of various uncompleted objects of manufacture after preliminary shaping.
- Latin praefōrmāre. See pre-, form
- 1595–1605
'preform' also found in these entries (note: many are not synonyms or translations):