Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
moho is a noun meaning "the boundary between the Earth's crust and the underlying mantle". It carries one recorded sense.
the boundary between the Earth's crust and the underlying mantle
“the Mohorovicic discontinuity averages 5 miles down under oceans and 20 miles down under continents”
geology
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 moho come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.