allantoid
- adjective
- Specialized
- Some spores are allantoid in appearance, making them easy to distinguish under the microscope.
Examples
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In reptiles, the allantoid sac plays a significant role in facilitating gas exchange during embryonic development.
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The structure was described as allantoid, elongated and slightly curved, in the research paper.
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The bacteria formed allantoid cells under certain growth conditions.
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The allantoid structure is crucial in embryonic development.
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In reptiles, the allantoid sac plays a significant role.
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Some spores are allantoid in appearance, making them easy to distinguish under the microscope.
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The structure was described as allantoid, elongated and slightly curved, in the research paper.
Synonyms
A long round shape with rounded ends like a small tube
Long and rounded like a small tube
Having the shape of a long sausage with rounded ends
How Sausage-shaped
Surface Forms
Morphology
allantoid = allantois (semi-transparent) = allanto + oid
The suffix '-oid' clearly means 'resembling', but the root 'allanto-' and the related term 'allantois' are technical and unfamiliar to average learners, so the meaning is not fully derivable.
Etymology
Allantoid comes from the Greek root allanto- meaning 'sausage', so it literally means 'sausage-shaped'. That's why scientists call a spore or cell allantoid when it is long, rounded, and a little curved.