bokstavskombination

Etymology
.

Noun

 * 1) A letter combination; a sequence of letters in a certain order.
 * 2)  A collective term about certain diagnoses that are referred to by abbreviations: ADHD, ADD, ASD, DAMP.

Usage notes

 * In the strictest sense, all words are indeed . However; most often the term refers to more unstructured sequences of letters, such as abbreviations or codes.