noun the thing added by way of enlargement.
2. augmentation ·noun the state of being augmented; enlargement.
3. augmentation ·noun the stage of a disease in which the symptoms go on increasing.
4. augmentation ·noun a additional charge to a coat of arms, given as a mark of honor.
5. augmentation ·noun in counterpoint and fugue, a repetition of the subject in tones of twice the original length.
6. augmentation ·noun the act or process of augmenting, or making larger, by addition, expansion, or dilation; increase.