Definition of labellum in English:

labellum

nounPlural labellaləˈbɛləmləˈbɛləm

1Entomology
Each of a pair of lobes at the tip of the proboscis in some insects.
〔昆〕（口器吻端的）唇
2Botany
A central petal at the base of an orchid flower, typically larger than the other petals and of a different shape.
〔植〕（兰花的）唇瓣
Example sentencesExamples
- In attempting unsuccessfully to couple with the labellum the male pushes its head forward below the overhanging column.
- If insects smaller than the pollinator become trapped they may crawl out without pollination occurring or, if larger than the pollinator, they may stay trapped until the labellum opens again.
- The petals are lesser segments that typically envelop the column; the labellum is also generally small.
- The males then try to mate with the labellum or else lift it as they would a female wasp.
- These encounters can be quite violent and frequently result in the labellum being torn from the flower.

Origin

Early 19th century: from Latin, diminutive of labrum 'lip'.

Definition of labellum in US English:

labellum

nounləˈbeləmləˈbɛləm

1Entomology
Each of a pair of lobes at the tip of the proboscis in some insects.
〔昆〕（口器吻端的）唇
2Botany
A central petal at the base of an orchid flower, typically larger than the other petals and of a different shape.
〔植〕（兰花的）唇瓣
Example sentencesExamples
- In attempting unsuccessfully to couple with the labellum the male pushes its head forward below the overhanging column.
- The males then try to mate with the labellum or else lift it as they would a female wasp.
- These encounters can be quite violent and frequently result in the labellum being torn from the flower.
- If insects smaller than the pollinator become trapped they may crawl out without pollination occurring or, if larger than the pollinator, they may stay trapped until the labellum opens again.
- The petals are lesser segments that typically envelop the column; the labellum is also generally small.

Origin

Early 19th century: from Latin, diminutive of labrum ‘lip’.

单词	labellum
释义	Definition of labellum in English: labellum nounPlural labellaləˈbɛləmləˈbɛləm 1Entomology Each of a pair of lobes at the tip of the proboscis in some insects. 〔昆〕（口器吻端的）唇 2Botany A central petal at the base of an orchid flower, typically larger than the other petals and of a different shape. 〔植〕（兰花的）唇瓣 Example sentencesExamples In attempting unsuccessfully to couple with the labellum the male pushes its head forward below the overhanging column. If insects smaller than the pollinator become trapped they may crawl out without pollination occurring or, if larger than the pollinator, they may stay trapped until the labellum opens again. The petals are lesser segments that typically envelop the column; the labellum is also generally small. The males then try to mate with the labellum or else lift it as they would a female wasp. These encounters can be quite violent and frequently result in the labellum being torn from the flower. Origin Early 19th century: from Latin, diminutive of labrum 'lip'. Definition of labellum in US English: labellum nounləˈbeləmləˈbɛləm 1Entomology Each of a pair of lobes at the tip of the proboscis in some insects. 〔昆〕（口器吻端的）唇 2Botany A central petal at the base of an orchid flower, typically larger than the other petals and of a different shape. 〔植〕（兰花的）唇瓣 Example sentencesExamples In attempting unsuccessfully to couple with the labellum the male pushes its head forward below the overhanging column. The males then try to mate with the labellum or else lift it as they would a female wasp. These encounters can be quite violent and frequently result in the labellum being torn from the flower. If insects smaller than the pollinator become trapped they may crawl out without pollination occurring or, if larger than the pollinator, they may stay trapped until the labellum opens again. The petals are lesser segments that typically envelop the column; the labellum is also generally small. Origin Early 19th century: from Latin, diminutive of labrum ‘lip’.
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