acumen

Quickness of perception or discernment; penetration of mind; the faculty of nice discrimination; acuity of mind.

"I am going to ask you a question that does not require much legal acumen to answer," said Lord Meersbrook to his attorney, when he called the next day in Lincoln's Inn;...

Sunning himself on the board steps, I saw for the first time Mr. Farquhar Fenelon Cooke.[…]A silver snaffle on a heavy leather watch guard which connected the pockets of his corduroy waistcoat, together with a huge gold stirrup in his Ascot tie, sufficiently proclaimed his tastes.[…]But withal there was a perceptible acumen about the man which was puzzling in the extreme.

A sharp, tapering point extending from a plant.

The black star of the corolla, characteristic of the original form, the manyfloweredness of the inflorescence (often connected with [3]—4 whirls), upper leaves in the inflorescence, adpression of the acumina of the calyx, its size, the closely situated anthers, long pistils, the length of the pedicel above and below the articulation and the thickness of the pedicel dominate.

11. S. boyacense. Resembles S. Rybinii from which it is distinguished by the greater dissection of the leaves, the longer calyx acumens, smaller anthers and coloured corolla.

A bony, often sharp, protuberance, especially that of the ischium.

The rostrum is the anterior extension of the carapace between the eyes. It ends in a more or less acute tip, or acumen, and may have a lateral spine on each side or bear a longitudinal keel (carina) on the dorsal surface.

DIAGNOSIS—Rostrum usually with marginal spines, tubercles, or angles at base of acumen, and rarely with low medina carina.