black line


Also found in: Medical, Wikipedia.

black line

[′blak ‚līn]
(plant pathology)
A disease of walnuts, especially of English varieties grafted to black walnuts, characterized by a black line of dead tissue at the graft union, eventually leading to death of the tree.
References in classic literature ?
You don't see a black line round objects in nature.
I turned to take the road back, and stopped, struck by the tranquil beauty of the last faint light in the western sky, shining behind the black line formed by the parapet of the bridge.
She looked down, noticing the black line of his leg moving in and out so close to her against the yellow shimmer of her gown.
You look at a spot in the sea and you see nothing - a gleam of blue, a fleck of white foam, one day; a gleam of green with a black line, another; and a grey little sob, the next, perhaps.
while across the smooth white paper before him his pencil fairly flew--after first drawing one black line through Matthew twenty-third; 13--14 and 23.
Gradually their eyes, growing accustomed to the dim and changing light, could pierce the black line above the grey where the sea came stealing up the sandy places with low murmurs, throwing with every wave longer arms into the land.
D'Artagnan recognized the king; he saw him fix his melancholy look upon the immense extent of the waters, and absorb upon his pale countenance the red rays of the sun already cut by the black line of the horizon.
One day when he was about twelve he found a number of lead pencils in a hitherto undiscovered drawer beneath the table, and in scratching upon the table top with one of them he was delighted to discover the black line it left behind it.
But Athos was standing with his eyes fixed on a black line which bordered the banks of the Tyne and seemed to extend double the length of the camp.
But our escape was not to be encompassed with such ease, for scarcely had we gotten under way once more in the direction of the entrance to Omean than we saw far to the north a great black line topping the horizon.
He draws, for instance, a black line of an inch in length: this, which in itself is a particular line, is nevertheless with regard to its signification general, since, as it is there used, it represents all particular lines whatsoever; so that what is demonstrated of it is demonstrated of all lines, or, in other words, of a line in general.
To my left the view is cut off by a black line of roof of the old house next to the abbey.