DictionarynoduleSmall rounded lump
noun

nodule

NAH-jool/ˈnɑːdʒuːl/

A small rounded lump or mass.

A small rounded nodule grows from the side of the root.

A close view of a short section of plant root with one small, rounded nodule visibly growing from its side.
Etymology

The pieces mean “little knot.” That image describes a small, rounded lump or growth as a knot-like formation rather than something tied with string.

In context

MacLean Center for Clinical Medical Ethics47:53
lung nodule that might be the biggest threat to her because she was very mentally intact
Atul Gawande "Being Mortal: Medicine and What Matters in the End"

More examples

  • The scan reveals a tiny nodule in his lung.
  • Rounded nodules of flint dot the chalk cliff.
  • Small nodules grow along the roots of the bean plant.

Forms

nodule · nodules

nodular adjective — Having or consisting of small rounded lumps.

Similar words

lump
A broader term for a mass of any shape.
bump
Usually describes a raised area on a surface.