ˌpektənəˈbraŋkēə, pekˌtin- noun plural
Usage: capitalized
Etymology: New Latin, from pectin- + -branchia
: a large order of Gastropoda (subclass Streptoneura) comprising univalve mollusks that have a single kidney, have typically a single ctenidium which resembles a comb and is usually attached to the mantle throughout its length, and have a heart with only one auricle