septarium
noun
a nodule or mass, such as of limestone or ironstone, formed by the addition of layers around a nucleus and having a network of cracks inside it filled with calcite and other minerals.
septaria
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pluralof septarium.plural
The grammatical form denoting more than one person, place, thing, or idea.
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.
Which further confirms this idea of the production of these curious septaria.
From The Botanic Garden A Poem in Two Parts. Part 1: the Economy of Vegetation by Erasmus Darwin
The volcanic origin of these curious septaria appears to me to be further evinced from their form and the places where they are found.
From The Botanic Garden A Poem in Two Parts. Part 1: the Economy of Vegetation by Erasmus Darwin
There are also Panopæa intermedia, and in septaria Pinna affinis.
From The Geological Story of the Isle of Wight by J. Cecil Hughes
Five layers of large ferruginous concretions, somewhat like the septaria of the London clay, have occasioned a resistance at this point, to which we may ascribe this headland.
From Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology by Sir Charles Lyell
This clay is more than forty feet thick, of a dark bluish-grey colour, and, like that of Rupelmonde, contains septaria.
From The Student's Elements of Geology by Sir Charles Lyell
