Meaning of pica

pi•ca

1. a 12-point type of a size between small pica and English.
2. the depth of this type size as a unit of linear measurement for type, pages containing type, etc.; one sixth of an inch.
3. a 12-point type, widely used for typewriters, having 10 characters to the inch. Cf.(def. 4).

pi•ca

1. an abnormal appetite or craving for substances that are not fit to eat, as chalk or clay, common in malnutrition, pregnancy, etc.