Knobby

They appeared, upon section, like wedge-shaped, knobby formations, penetrating into the placenta fetalis, and were thus found in three places ; the smallest was 3 mm. and the largest was 15 mm. in diameter.

Source: wiktionary

The baby kicked energetically. She caressed a knobby knee or elbow.

Source: wiktionary

The large open leaves and large knobby leaves were picked out by hand, and formed the finest sort of "hyson skin" (known commercially as pretty good bloom, brightish hyson kind mixed, knobby leaf); the remaining leaves were hyson.

Source: wiktionary

Knobby Creek rises in the center part of Union Township, flowing north where it empties into the Osage River. Name suggested by the "knobby" character of the surrounding country, i.e. full of "knobs" or low hills. Sometimes called Beaver Creek, from the animal found here in early days.

Source: wiktionary