a knot, protuberance, or knob.

a centering point of component parts.

Anatomy . a knotlike mass of tissue

lymph node.

Pathology . circumscribed swelling.

Botany .

a joint in a stem.

a part of a stem that normally bears a leaf.

Mathematics . knot ( def. 12 ) .

Geometry . a point on a curve or surface at which there can be more than one tangent line or tangent plane.

Physics . a point, line, or region in a standing wave at which there is relatively little or no vibration.

Astronomy . either of the two points at which the orbit of a heavenly body intersects a given plane, esp. the plane of the ecliptic or of the celestial equator. Compare ascending node , descending node .

Linguistics . an element of a tree diagram that represents a constituent of a linguistic construction.

Optics . nodal point.

Engineering . panel point.

nodus.

noun

bulge , bump , burl , clot , growth , knob , knot , lump , nodule , protuberance , swelling , complication , dilemma , granule , joint , point