perspicuity

PERSPICU'ITY, n. [L. perspicuitas, from perspicio.]

1. Transparency; clearness; that quality of a substance which renders objects visible through it. [Little used.]

2. Clearness to mental vision; easiness to be understood; freedom from obscurity or ambiguity; that quality of writing or language which readily presents to the mind of another the precise ideas of the author. Perspicuity is the first excellence of writing or speaking.