segment
They have an unsegmented body, flexible tentacles, and lateral fins.
Molluscs are invertebrates with soft, unsegmented bodies.
The abdomen is short and unsegmented.
The language sample consists of unsegmented strings of letters or phonemic symbols.
This analysis assumes an unsegmented labour market in which workers with similar skill levels have similar life chances.

SMART Vocabulary: related words and phrases

Words meaning parts of things
back end
bifurcation
biomarker
branch
cartridge
chunk
element
modularized
modularly
module
moiety
multi-branched
multi-component
panel
piece
sub-branch
sub-sector
subcomponent
subpart
subscale