adjective
rotund
roh-TUND/rəʊˈtʌnd/
Full and rounded in form.
The rotund pumpkin has a full, nearly spherical shape.

Etymology
Latin rotundus describes roundness like that of a wheel, an image readily applied to a plump body. Its use for full-toned speech reflects the rounded mouth in pronunciation.
In context
the image of a large or rotund baby i guess fat baby um yatma on the other hand uh creates the image of a baby which is small or thin
More examples
- The rotund man settles into a wide armchair.
- She pours tea from a rotund ceramic pot.
- The clay bird has a rotund body and tiny wings.
Forms
rotund
rotundity noun — The quality of being full and rounded.