No alteration had occurred, during his absence, in the presidency of the admiralty department.

It also functions as a working memory in which alterations of information can occur.

Thus, an alteration must occur in each of the two genes inherited from a person's mother and father.

A major alteration occurred about 1930 and the kitchen was rebuilt in 1960.

The major alterations in the historical framework occur in the first half of the book.

"Doctor," the captain said, "we believe that an alteration has occurred in the timeline."

Human alterations have occurred in different phases, including the period prior to industrialization.

Perhaps the most significant alterations occurred in the 20th Century, when the rigging was changed twice.

The last alteration to the current flag occurred in 2004 when the aspect ratio changed from 1:2 to 3:5.

Reconstructions and alterations of this church occurred over the centuries.