WordReference Random House Unabridged Dictionary of American English © 2020
nod•al  (nōdl),USA pronunciation adj. 
  1. pertaining to or of the nature of a node.
no•dali•ty, n. 
  • node + -al1 1825–35

WordReference Random House Learner's Dictionary of American English © 2020
node /noʊd/USA pronunciation   n. [countable]
  1. a knot or knob of something that sticks up or out.
  2. a centering point of parts, lines, etc., that come together.
  3. Anatomya knotlike mass of tissue:a lymph node.
  4. Botanya part of a stem from which a leaf or branch grows.
nod•al, adj. 

WordReference Random House Unabridged Dictionary of American English © 2020
node  (nōd),USA pronunciation n. 
  1. a knot, protuberance, or knob.
  2. a centering point of component parts.
  3. Anatomya knotlike mass of tissue:lymph node.
  4. Pathologycircumscribed swelling.
  5. Botany
    • Botanya joint in a stem.
    • Botanya part of a stem that normally bears a leaf.
  6. Mathematicsknot (def. 12).
  7. Mathematics[Geom.]a point on a curve or surface at which there can be more than one tangent line or tangent plane.
  8. Physicsa point, line, or region in a standing wave at which there is relatively little or no vibration.
  9. Astronomyeither 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. Cf.  ascending node, descending node. 
  10. Linguisticsan element of a tree diagram that represents a constituent of a linguistic construction.
  11. OpticsSee  nodal point. 
  12. Civil Engineering[Engin.]See  panel point. 
  13. nodus.
  • Latin nōdus knot
  • 1565–75

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