Lacking in vigour; anemic, feeble.
Of a plant: intentionally grown in the dark.
Of an animal or person: having an ashen or pale appearance; also, haggard or thin; physically weak.
Of a plant or part of a plant: pale and weak because of sunlight deprivation or excessive exposure to sunlight.
Being, or having the salient properties of, a monotone function.
Having a single unvaried pitch.
A piece of writing in one strain throughout.
A single unvaried tone of speech or a sound.
To speak in a monotone.