nodal rhythm n.
See atrioventricular nodal rhythm.
- Nodal switching system
(NSS) Main routing nodes in the NSFnet backbone.
National Oceanographic Data Center
Noddack (nŏd’āk’) German chemist who with her husband, Walter Karl Friedrich Noddack (1893-1960), discovered rhenium and an element they called masurium (later named technetium) in 1925.
[nod] /nɒd/ verb (used without object), nodded, nodding. 1. to make a slight, quick downward bending forward of the head, as in assent, greeting, or command. 2. to let the head fall slightly forward with a sudden, involuntary movement when sleepy. 3. to doze, especially in a sitting position: The speaker was so boring that […]