say it: JEM-uh-nuht
geminate is a verb and noun meaning "form by reduplication". It carries 5 recorded senses.
form by reduplication
“The consonant reduplicates after a short vowel”
“The morpheme can be reduplicated to emphasize the meaning of the word”
linguistics
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 geminate 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.