susceptible to

susceptible to something

 
1. easily persuaded; easily influenced. The students were susceptible to the allure of drugs. The young revolutionaries were susceptible to propaganda.
2. likely to contract a sickness; likely to become sick. People with AIDS are susceptible to pneumonia. Infants and the elderly are more susceptible to illness than other people.
References in classic literature ?
But supplementary to this, it has hypothetically occurred to me, that as ordinary fish possess what is called a swimming bladder in them, capable, at will, of distension or contraction; and as the Sperm Whale, as far as I know, has no such provision in him; considering, too, the otherwise inexplicable manner in which he now depresses his head altogether beneath the surface, and anon swims with it high elevated out of the water; considering the unobstructed elasticity of its envelop; considering the unique interior of his head; it has hypothetically occurred to me, I say, that those mystical lung-celled honeycombs there may possibly have some hitherto unknown and unsuspected connexion with the outer air, so as to be susceptible to atmospheric distension and contraction.
M'Dougal seems to have had a heart susceptible to the influence of the gentler sex.
She made him at least dwell upon problems which were real in the sense that they were capable of solution; and the true cause of his melancholy, which was not susceptible to such treatment, sank rather more deeply into the shades of his mind.
Night had closed in, and Paris, seen thus, by the light of lanterns flickering on the pools of water, crowded with ferry-boats of every kind, including those that glittered with the armed patrols, with the watchword, passing from post to post -- Paris presented such an aspect as to strongly seize the senses of Aramis, a man most susceptible to warlike impressions.
They had left Louisa beginning to sit up; but her head, though clear, was exceedingly weak, and her nerves susceptible to the highest extreme of tenderness; and though she might be pronounced to be altogether doing very well, it was still impossible to say when she might be able to bear the removal home; and her father and mother, who must return in time to receive their younger children for the Christmas holidays, had hardly a hope of being allowed to bring her with them.
Some of us, too," he concluded, "are very susceptible to strange odors.
He had always been susceptible to the laughter of the gods.
I waved my hand back and forth, of course without effect; but when the moving shadow fell across his face I saw at once that he was susceptible to the impression.
These two," she said, looking from the Prince to Lady Carey, "seem to have been afflicted with a sudden nervous excitement, and yet I do not think that they are, either of them, very susceptible to music.
It must be that Mr Verloc was susceptible to these fascinations.
The intrepid treasure-seeker walked round it, and, selecting the spot from whence it appeared most susceptible to attack, placed his lever in one of the crevices, and strained every nerve to move the mass.
The evolutionary basis that resulted in some avian species to be susceptible to ISD (eg, dietary cause) seems to differ from many inherited ISD disorders in humans that are thought to have evolved to bolster protection against infectious diseases.
The susceptible strain used had been in continuous culture in the laboratory since the late 1980's without the introduction of any whiteflies collected from the field, and, therefore, would be expected to be highly susceptible to the insecticides.
In fact, they are recommending cutting down all infested trees and trees susceptible to infestation in a two-square-mile area in northern Worcester - potentially 20,000 trees.
Pruning now would expose still-healthy plant tissue to the cold and also stimulate new, tender growth even more susceptible to injury than the already-damaged older growth.