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Related to senna: Ayrton Senna


1. Any of various plants in the pea family, chiefly of the genera Senna and Chamaecrista, having pinnately compound leaves and showy, nearly regular, usually yellow flowers, used as ornamentals and for medicinal purposes.
2. A preparation of the dried leaves of Senna alexandrina, used as a laxative.

[New Latin, from Arabic sanā; akin to Aramaic sanyā, a thorn-bush.]


1. (Plants) any of various tropical plants of the leguminous genus Cassia, esp C. angustifolia (Arabian senna) and C. acutifolia (Alexandrian senna), having typically yellow flowers and long pods
2. (Pharmacology) senna leaf the dried leaflets of any of these plants, used as a cathartic and laxative
3. (Pharmacology) senna pods the dried fruits of any of these plants, used as a cathartic and laxative
[C16: via New Latin from Arabic sanā]


(Biography) Ayrton (ˈɛətən). 1960–94, Brazilian racing driver: Formula One world champion (1988, 1990, 1991)


(ˈsɛn ə)

n., pl. -nas.
1. any plant, shrub, or tree belonging to the genus Cassia, of the legume family, having pinnate leaves and large clusters of flowers.
2. any of various cathartic drugs made from certain of these plants.
[1535–45; < New Latin < Arabic sanā]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.senna - any of various plants of the genus Senna having pinnately compound leaves and showy usually yellow flowerssenna - any of various plants of the genus Senna having pinnately compound leaves and showy usually yellow flowers; many are used medicinally
genus Senna - genus of shrubs and trees and herbs many of which are often classified as members of the genus Cassia
Cassia alata, ringworm bush, ringworm cassia, ringworm shrub, Senna alata - tropical shrub (especially of Americas) having yellow flowers and large leaves whose juice is used as a cure for ringworm and poisonous bites; sometimes placed in genus Cassia
avaram, Cassia auriculata, Senna auriculata, tanner's cassia - evergreen Indian shrub with vivid yellow flowers whose bark is used in tanning; sometimes placed in genus Cassia
Alexandria senna, Alexandrian senna, Cassia acutifolia, Cassia augustifolia, Indian senna, Senna alexandrina, tinnevelly senna, true senna - erect shrub having racemes of tawny yellow flowers; the dried leaves are used medicinally as a cathartic; sometimes placed in genus Cassia
Cassia occidentalis, coffee senna, mogdad coffee, Senna occidentalis, stinking weed, styptic weed - very leafy malodorous tropical weedy shrub whose seeds have been used as an adulterant for coffee; sometimes classified in genus Cassia
bush, shrub - a low woody perennial plant usually having several major stems


[ˈsenə] Nsena f


n (= drug)Sennesblätter pl; (= plant)Sennespflanze f


n (bot) sen m
References in classic literature ?
March knew that experience was an excellent teacher, and when it was possible she left her children to learn alone the lessons which she would gladly have made easier, if they had not objected to taking advice as much as they did salts and senna.
He is a very nice boy, my Lord, but he is not acquainted with drugs; and I know that the prevailing impression on his mind is, that Epsom salts means oxalic acid; and syrup of senna, laudanum.
Hamilton, who has spoken of his admiration for Senna throughout his grand prix career, will match his idol's record of 41 wins should he triumph under the lights in Singapore on Sunday.
Abu Dhabi: Former Spain captain and 2008 European Championship winner Marcos Senna will retire in November, he said on Wednesday.
Featuring rare footage from the F1 archives and contributions from fellow racing stars including Alain Prost, with whom Senna enjoyed a competitive and sometimes controversial rivalry and Jackie Stewart.
Motability has helped more than three million people into a new vehicle NEWS TWENTY years after the death of Formula 1 legend Ayrton Senna, the car which launched his career is being put up for sale by Cars International.
The 29-year-old McLaren driver was speaking at the circuit considered the favourite battleground of his idol, the legendary Ayrton Senna.
FORMER Spain midfielder Marcos Senna is backing Diego Costa to have a 'great World Cup' and to be as big a success with the reigning world and European champions as he has been with Atletico Madrid.
According to the Sydney Morning Herald, the world championship leader, who claims to idolise late three-time Brazilian champion Ayrton Senna, suggested he might copy one of the moves of Senna, who had an infamous rivalry with Frenchman Alain Prost at McLaren.
In this case, the stakes were relatively low for Senna, a 7-year-old Belgian Malinois.
LEWIS Hamilton has felt a lifelong connection to Ayrton Senna and attributes his own driving style and success to his early years of watching the three-time world champion on television.
Ruthless, focused and dedicated - that was how the three-time Formula 1 world champion Ayrton Senna was known inside the cockpit.