A knot, knob, protuberance or swelling.

(anatomy, immunology) Each of the small oval bodies of the lymphatic system, distributed along the lymphatic vessels, that are clustered in the armpits, groin, neck, chest and abdomen. They act as filters, with an internal honeycomb of connective tissue filled with lymphocytes and macrophages that collect and destroy bacteria, viruses and foreign matter from lymph. When the body is fighting an infection, these lymphocytes multiply rapidly and produce a characteristic swelling of the lymph nodes.

(geology) a concretion of oxides of manganese and iron found on the floor of many oceans

Of or relating to a nodule or nodules. / Possessing, composed of, or similar in form to nodules.

(UK, informal) The head; the part of the body of an animal or human which contains the brain, mouth and main sense organs. / (UK, informal) The head as the seat of mental capacity or intellect.

(intransitive) To nod repeatedly.

Alternative form of noodle (“improvise musically”).

plural of noddle

(anatomy, immunology) Synonym of lymph node.

A stupid or silly person.