What does thornapple mean?
Thornapple is a common English name for a thorny, poisonous plant of the nightshade family, especially Datura stramonium, and, by extension, for its prickly fruit. The plant is known for large trumpet-shaped flowers and capsules whose outer surfaces are covered with sharp spines. Its dangerous reputation comes from tropane alkaloids, which occur throughout the plant; ingestion can cause serious poisoning. The word is therefore associated in modern usage with both botany and toxicology, rather than being an ordinary reference to edible fruit. It is commonly encountered as “thorn apple,” with a space, while “thornapple” is an accepted closed compound. Writers may also use names such as “jimsonweed” and “stramonium.” Although thornapple can suggest the whole Datura plant, it can also refer specifically to the spiny fruit capsule. These senses overlap, but the toxic character of the plant is central to the word’s modern associations and explains why it appears prominently in safety warnings and historical accounts of accidental poisoning.
nounA thorny, poisonous plant of the nightshade family, especially Datura stramonium; the word may also refer to its prickly fruit capsule.
- The thorny, poisonous nightshade-family plant Datura stramonium, known for large trumpet-shaped flowers and spiny fruit capsules.
- The prickly fruit capsule of a thornapple plant.
"Despite its showy flowers, the thornapple is dangerously poisonous if any part of it is ingested."
"The invasive thornapple spread quickly through the disturbed ground."
"Each thornapple split open to release numerous seeds."
Use the plural for multiple plants, capsules, or instances of the fruit.
"Several thornapples grew along the abandoned roadside."
Showy trumpet-shaped flowers can hide a thornapple, a plant so toxic that safety warnings often name it directly.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does thornapple come from?
The compound combines “thorn” and “apple,” both of which are inherited from Old English: “þorn” and “æppel.” The name was applied to the plant’s prickly fruit, whose shape was likened to an apple, and also came to refer to the whole plant. In modern botanical usage, the common name principally denotes Datura stramonium.
How thornapple is actually used
Both “thornapple” and “thorn apple” are established; the difference is orthographic rather than semantic. The word is chiefly associated with botany, toxicology, and accounts of accidental poisoning.
Easily confused with thornapple
A crabapple is a tree or shrub in the genus Malus, whereas a thornapple is a thorny, toxic herbaceous plant of the nightshade family.