| poison pill | the target company defends itself by making its stock less attractive to an acquirer |
| South American poison toad | a South American toad |
| arrow | a projectile with a straight thin shaft and an arrowhead on one end and stabilizing vanes on the other, intended to be shot from a bow |
| bow and arrow | a weapon consisting of arrows and the bow to shoot them |
| broad arrow | an arrow with a wide barbed head |
| poison | anything that harms or destroys, the poison of fascism |
arrow
pointer | a mark to indicate a direction or relation |
| broad arrow | a mark shaped like an arrowhead, used to mark convicts' clothing |
| broad arrow | an arrowhead mark identifying British government property |
square shooter
straight shooter
straight arrow | a frank and honest person |
darling pea
poison bush | either of two Australian plants of the genus Swainsona that are poisonous to sheep |
winter sweet poison arrow plant
Acocanthera oblongifolia
Acocanthera spectabilis | medium-sized shrubby tree of South Africa having thick leathery evergreen leaves and white or pink flowers and globose usually two-seeded purplish black fruits |
bushman's poison
ordeal tree
Acocanthera oppositifolia
Acocanthera venenata | evergreen shrub or tree of South Africa |
| arrow arum | an aquatic plant of the genus Peltandra, North America |
green arrow arum
tuckahoe
Peltandra virginica | perennial herb of the eastern United States having arrowhead-shaped leaves and an elongate pointed spathe and green berries |
| arrow leaved aster | a variety of aster |
fly poison
Amianthum muscaetoxicum
Amianthum muscitoxicum | all parts of plant are highly toxic, bulb pounded and used as a fly poison, sometimes placed in subfamily Melanthiaceae |
poison camas
Zigadenus nuttalli | a common perennial death camas, Tennessee to Kansas to Texas |
| poison bush poison pea gastrolobium | any of various Australian evergreen shrubs of the genus Gastrolobium having whorled compound leaves poisonous to livestock and showy yellow to deep reddish-orange flowers followed by two-seeded pods |
Scheuchzeriaceae
family Scheuchzeriaceae
Juncaginaceae
family Juncaginaceae
arrow-grass family | a family of monocotyledonous bog herbs of order Naiadales |
arrow grass
Triglochin maritima | tufted perennial found in shallow water or marshland, sometimes poisons livestock |
arrow wood
southern arrow wood
Viburnum dentatum | deciduous shrub of eastern North America having blue-black berries and tough pliant wood formerly used to make arrows |
| arrow wood Viburnum recognitum | closely related to southern arrow wood, grows in the eastern United States from Maine to Ohio and Georgia |
poison ash
poison dogwood
poison sumac
Toxicodendron vernix
Rhus vernix | smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries, yields an irritating oil |
poison ivy
markweed
poison mercury
poison oak Toxicodendron radicans
Rhus radicans | climbing plant common in eastern and central United States with ternate leaves and greenish flowers followed by white berries, yields an irritating oil that causes a rash on contact |
western poison oak
Toxicodendron diversilobum
Rhus diversiloba | poisonous shrub of the Pacific coast of North America that causes a rash on contact |
eastern poison oak
Toxicodendron quercifolium
Rhus quercifolia
Rhus toxicodenedron | poisonous shrub of southeastern United States causing a rash on contact |
black nightshade
common nightshade
poisonberry
poison-berry
Solanum nigrum | Eurasian herb naturalized in America having white flowers and poisonous hairy foliage and bearing black berries that are sometimes poisonous but sometimes edible |
hemlock poison hemlock
poison parsley
California fern
Nebraska fern
winter fern
Conium maculatum | large branching biennial herb native to Eurasia and Africa and adventive in North America having large fernlike leaves and white flowers, usually found in damp habitats, all parts extremely poisonous |
poison milkweed
horsetail milkweed
Asclepias subverticillata | milkweed of southwestern United States and Mexico, poisonous to livestock |
| poison ivy | dermatitis resulting from contact with the poison ivy plant, my poison ivy is drying up |
| poison oak | dermatitis resulting from contact with a poison oak plant |
| poison sumac | dermatitis resulting from contact with a poison sumac plant |
| poison gas | a gas that is poisonous to breath or contact, used in chemical warfare |
poison
toxicant
poisonous substance | any substance that causes injury or illness or death of a living organism |
| poison | administer poison to, She poisoned her husband but he did not die |
poison
envenom | add poison to, Her husband poisoned her drink in order to kill her |
| poison | kill with poison, She poisoned her husband |
| poison | kill by its poison, This mushrooms can poison |
| poison | spoil as if by poison, poison someone's mind, poison the atmosphere in the office |
sagittate
sagittiform
arrow-shaped | (of a leaf shape) like an arrow head without flaring base lobes |