(music) The practice of enlarging and revising the orchestration of an earlier work, usually a Baroque piece, to accommodate the larger contemporary orchestras and tastes of the time.

(botany) Any non-chlorophyll pigment present in a chloroplast that helps to absorb light but sends all the energy to a chlorophyll.

(medicine) A spontaneous abortion.

plural of accidental abortion

plural of accidental light

(optics) A colour depending on the hypersensibility of the retina of the eye for complementary colours. They are purely subjective sensations of colour which often result from the contemplation of actually coloured bodies.

plural of accidental color

Alternative form of accidental colour

plural of accidental colour

plural of accidental chord