ascidium
Americannoun
-
ascidia
plural
noun
Other Word Forms
Noun Inflected Forms
Etymology
Origin of ascidium
1760–70; < New Latin < Greek askídion a small bag, equivalent to ask ( ós ) bag + -idion -idium
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
They are narrower than those of the teasel, but this depends, as we have seen for the "one-leaved" ascidium, on the shape of the original leaf.
From Species and Varieties, Their Origin by Mutation by Hugo de Vries
It appeared from some transitional forms that the adventitious leaflet, just mentioned, was due to the exaggerated development of this gland, but no clue was afforded as to the origin of the ascidium.
From Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants by Maxwell T. Masters
Interrupted leaves, with an ascidium on a naked prolongation of the midvein, are by no means limited to the Croton varieties.
From Species and Varieties, Their Origin by Mutation by Hugo de Vries
The base of this apical limb exhibits two connate lobes, forming together a wide cup or ascidium.
From Species and Varieties, Their Origin by Mutation by Hugo de Vries
By this contrivance the double ascidium assumes a terminal position.
From Species and Varieties, Their Origin by Mutation by Hugo de Vries
The first bore one small pitcher-like blade, the second and third, each one highly modified organ, the fourth, two ascidia, and the last, one leaflet with slightly connate margins.
From Species and Varieties, Their Origin by Mutation by Hugo de Vries
But then all sorts of seemingly sudden variations are occasionally designated by the same term by one writer or another, and even accidental anomalies, such as teratological ascidia, are often said to arise by sports.
From Species and Varieties, Their Origin by Mutation by Hugo de Vries
Some species have more rounded and some more elongated ascidia and often the shape is seen to change with the development of the stem.
From Species and Varieties, Their Origin by Mutation by Hugo de Vries
The whole of the anterior or respiratory section of the gut is converted into a gill-crate, which is pierced trellis-wise by numbers of branchial-holes, as in the ascidia.
From The Evolution of Man — Volume 2 by Ernst Heinrich Philipp August Haeckel
Besides the above varieties of ascidia formed from the union of one or more leaves, there are others which seem to be the result of a peculiar excrescence or hypertrophy of the leaf.
From Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants by Maxwell T. Masters
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