different between petiole vs apterous
petiole
English
Etymology
Borrowed from French pétiole, and its source, Late Latin petiolus (“little foot”), diminutive form of Latin p?s (“foot”).
Pronunciation
- (UK) IPA(key): /?p?t???l/
- (US) IPA(key): /?p?di?o?l/
Noun
petiole (plural petioles)
- (botany) The stalk of a leaf, attaching the blade to the stem.
- Synonym: pedicel (stalk of a flower)
- 1978, Harry T. Valentine, Estimating Defoliation of Hardwoods Using Blade-petiole Relations, Forest Service Research Paper NE 405, US Department of Agriculture, page 1,
- Most insects consume tissue from the leaf blade were measured just past the twist on the side away only, leaving the leaf petioles unscathed.
- 1992, Karl J. Niklas, Plant Biomechanics, University of Chicago Press,page 167,
- By contrast, the petioles of large pinnate leaves, as well as stems, typically resist torsion by placing stiff materials with high elastic moduli (like sclerenchyma) toward the perimeters of their cross sections.
- 2000, Mike Hansell, Bird Nests and Construction Behaviour, Cambridge University Press, page 116,
- An example of this is leaf petioles. Some species of trees have pinnate leaves which, when the leaves fall, shed pinnae from the petiole, which is then left as a tapering, somewhat flexible rod.
- (entomology, insect anatomy) A narrow or constricted segment of the body of an insect; especially, the metasomal segment of certain Hymenoptera, such as wasps.
- Synonym: pedicel (used more generally, of arthropods)
- (entomology) The stalk at the base of the nest of the paper wasp.
Usage notes
- The presence of a petiole (narrow body segment) is the defining characteristic distinguishing the suborder Apocrita (ants, bees and wasps) from the rest of order Hymenoptera (i.e., from the paraphyletic suborder Symphyta).
Derived terms
- petiolar
- petiolary
- postpetiole
Translations
Further reading
- petiole (botany) on Wikipedia.Wikipedia
- petiole (insect anatomy) on Wikipedia.Wikipedia
petiole From the web:
- what is meant by petiole
- petiole what is its function
- what is petiole in leaf
- what is petiole in plants
- what does petiole mean
- what is petiole and lamina
- what is petiole class 6
- what does petiole do
apterous
English
Alternative forms
- apteran
Etymology
a- +? -pterous
Adjective
apterous (not comparable)
- (zoology) Destitute of wings; wingless.
- (biology) Destitute of winglike membranous expansions, as a stem or petiole.
Translations
apterous From the web:
- what is apterous mean
- what is apterous gene
- what is apterous insects
- what does rapturous mean
- what does apterous do
- what is apterous
- what is apterous in biology
- what does apterous mean in biology
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