Definition of peduncle in English:

peduncle

Line breaks: ped|uncle
Pronunciation: /pɪˈdʌŋk(ə)l
 
/

noun

Botany
  • 1The stalk bearing a flower or fruit, or the main stalk of an inflorescence. Compare with pedicel.
    More example sentences
    • In angiosperms, trichomes may occur on leaves, petals, stems, petioles, peduncles and seed coats, depending on the species.
    • The reddish colour of the depistillated flower and its peduncle is a response to high light intensities during anthesis and should not be interpreted to indicate senescence.
    • Briefly, after harvesting, fruit peduncles were trimmed to uniform length with a scalpel, and each fruit was immediately placed in an autoclaved container with a nutrient solution.
  • 1.1 Zoology A stalk-like part by which an organ is attached to an animal’s body, or by which a barnacle or other sedentary animal is attached to a substrate.
    More example sentences
    • The twisting action allows the animal to use the flukes in conjunction with the peduncle as a rudder.
    • In addition to the tentacles, these extremities include the hypostome, the lower peduncle, which is committed to foot formation, and the foot.
    • The body of the fish is measured from the tip of the mouth to the caudal peduncle (end of the body wall muscle).

Derivatives

peduncular

Pronunciation: /pɪˈdʌŋkjʊlə/
adjective
More example sentences
  • Overall, the ovules in the most peduncular / basal positions within the ovary are less likely to be fertilized than those in the most stylar/distal positions.
  • Thus, the peduncular vertebrae form a rigid bar, interposed between two relatively flexible joints.

Origin

mid 18th century: from modern Latin pedunculus, from Latin pes, ped- 'foot'.

More definitions of peduncle

Definition of peduncle in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
(in science fiction) navigation in outer space