Age-related macular degeneration (AMD or ARMD) is the most common cause of vision loss in those aged over 50. It causes a gradual loss of central (but not peripheral) vision. Central vision is needed for detailed work and for things like reading and driving. The disease does not lead to complete blindness.
Definition of Dissonance Dissonance is the use of impolite, harsh-sounding, and unusual words in poetry. In other words, it is a deliberate use of inharmonious words, phrases, or syllables intended to create harsh sounding effects.
coloration, colouration, color, colour - the timbre of a musical sound; the recording fails to capture the true color of the original music. nasality - a quality of the voice that is produced by nasal resonators. plangency, reverberance, sonority, sonorousness, vibrancy, ringing, resonance - having the character of a loud deep sound; the quality of being resonant. stridence, stridency, shrillness - having the timbre of a loud high-pitched sound. register - (music) the timbre that is characteristic of a certain range and manner of production of the human voice or of different pipe organ stops or of different musical instruments.