N

N newton; nitrogen; normal (2a).

---

N /N / normal (2a); number; Avogadro's number.

---

n nano-; refractive index; neutron.

---

n /n / haploid chromosome number; refractive index; sample size (statistics).

---

N ¹

The symbol for the element nitrogen.

---

N ²

abbr.

newton

---

n

abbr.

refractive index

---

N,

1 symbol for the element nitrogen.

2 abbreviation for normal.

3 abbreviation for node in the TNM system for staging malignant neoplastic disease. See cancer staging.

4 symbol for magnetic flux.

---

N/1,

symbol for normal solution.

---

n, 2n, 3n, 4n,

symbols for the haploid, diploid, triploid, and tetraploid number of chromosomes in a cell, organism, strain, or individual.

---

N/m²,

abbreviation for newton per square meter.

---

N (n),

n in statistics, the number of cases or observations.

---

N

1. symbol, newton.

2. chemical symbol, nitrogen.

3. symbol, normal (solution); the expressions 2N (double normal), 0.5N (half-normal), 0.1N (tenth-normal), etc., denote the strength of a solution in comparison with the normal.

---

n

1. symbol, refractive index.

2. symbol, nano-.

3. statistically speaking, the number of individuals or values in a sample.

---

N

Shorthand for 1. Amino 2. Asparagine 3. Neisseria 4. Nerve 5. Neuraminidase 6. Neutron number 7. Nifedipine 8. Nocardia 9. Nitrogen 10. Normal solution–equivalents/L 11. Nuclear 12. Nucleoside 13. Nucleus 14. Number  15. Nystatin 16. Population size 17. Radiance

---

n

Shorthand for: 1. Haploid number–genetics. 2. nano- SI– abbreviation for 10–9 3. Neutron. 4. Refractive index