1. Physics. newton; newtons.
2. north.
3. northern.
Symbol.
1. the 14th in order or in a series, or, when I is omitted, the 13th.
2. ( sometimes l.c. ) the medieval Roman numeral for 90. Cf. Roman numerals .
3. Chem. nitrogen.
4. Biochem. asparagine.
5. Math. an indefinite, constant whole number, esp. the degree of a quantic or an equation, or the order of a curve.
6. Chess. knight.
7. Print. en.
8. Chem. See Avogadro's number .
9. See neutron number .