tenui

a. [ See Tenuous. ] Rare or subtile; tenuous; -- opposed to dense. [ Obs. ] Glanvill. [ 1913 Webster ]

n.; pl. Tenuirosters [ NL., fr. L. tenuis thin + rostrum a beak. ] (Zool.) One of the Tenuirostres. [ 1913 Webster ]

a. (Zool.) Thin-billed; -- applied to birds with a slender bill, as the humming birds. [ 1913 Webster ]

‖n. pl. [ NL. ] (Zool.) An artificial group of passerine birds having slender bills, as the humming birds. [ 1913 Webster ]

‖n.; pl. Tenues [ NL., fr. L. tenuis fine, thin. See Tenuous. ] (Gr. Gram.) One of the three surd mutes κ, π, τ; -- so called in relation to their respective middle letters, or medials, γ, β, δ, and their aspirates, χ, φ, θ. The term is also applied to the corresponding letters and articulate elements in other languages. [ 1913 Webster ]