disposed to seek revenge or intended for revenge

toxin secreted by animals; secreted by certain snakes and poisonous insects (e.g., spiders and scorpions)

extremely poisonous or injurious; producing venom

a device (such as a fan) that introduces fresh air or expels foul air

an irritating or obnoxious person

a man's sleeveless garment worn underneath a coat

an indication that something has been present

shake, quiver, or throb; move back and forth rapidly, usually in an uncontrolled manner

(of persons or their actions) able or disposed to inflict pain or suffering

any of the numerous plants of the genus Viola