say it: MAN-uh-fohld
manifold is a noun, verb and adjective meaning "a pipe that has several lateral outlets to or from other pipes". It carries 6 recorded senses.
a pipe that has several lateral outlets to or from other pipes
a lightweight paper used with carbon paper to make multiple copies
“an original and two manifolds”
a set of points such as those of a closed surface or an analogue in three or more dimensions
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for manifold come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.