Definition of gladiolus noun from the Oxford Advanced Learner's Dictionary

 

gladiolus

 noun
noun
BrE BrE//ˌɡlædiˈəʊləs//
 
; NAmE NAmE//ˌɡlædiˈoʊləs//
 
(pl. gladioli
BrE BrE//ˌɡlædiˈəʊlaɪ//
 
; NAmE NAmE//ˌɡlædiˈoʊlaɪ//
 
)
 
jump to other results
a tall garden plant with long thin leaves and brightly coloured flowers growing up the stem Word Origin Old English (originally denoting the ‘gladdon’, a purple-flowered iris), from Latin, diminutive of gladius ‘sword’ (used as a plant name by Pliny).
See the Oxford Advanced American Dictionary entry: gladiolus