A more thorough explanation:

Viduitatis professio is a Latin term that refers to a woman's solemn act of professing that she will live as a single, chaste woman.

An example of viduitatis professio can be seen in the Catholic Church, where women who choose to live a life of celibacy and dedicate themselves to religious service take a vow of chastity. This vow is a solemn promise to remain unmarried and abstain from sexual activity for the rest of their lives.

Another example of viduitatis professio can be found in historical records of ancient Rome, where widows who chose not to remarry would make a public declaration of their intention to remain single and chaste for the rest of their lives.

The examples illustrate the definition of viduitatis professio by showing how women in different historical and cultural contexts have made a solemn commitment to live as single, chaste women. In both cases, the vow of chastity is a public declaration of their dedication to a life of service and devotion, whether to the Church or to their own personal beliefs and values.