Homorganic consonant
In phonetics, a homorganic consonant (from Latin homo- 'same' and organ '[speech] organ') is a consonant sound that is articulated in the same place of articulation as another. For example, [p], [b] and [m] are homorganic consonants of one another since they share the bilabial place of articulation. Consonants that are not articulated in the same place are called heterorganic.