Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
conterminous is an adjective meaning "connecting without a break; within a common boundary". It carries 3 recorded senses.
connecting without a break; within a common boundary
“the 48 conterminous states”
“the contiguous 48 states”
having a common boundary or edge; abutting; touching
“Rhode Island has two bordering states; Massachusetts and Connecticut”
“the side of Germany conterminous with France”
“Utah and the contiguous state of Idaho”
“neighboring cities”
being of equal extent or scope or duration
Definitions, synonyms and semantic relations for conterminous come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.