tetramerous
Americanadjective
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consisting of or divided into four parts.
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Botany. (of flowers) having the parts of a whorl arranged in fours or multiples of four.
adjective
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(esp of animals or plants) having or consisting of four parts
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(of certain flowers) having parts arranged in whorls of four members
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Having four similar segments or parts.
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Having flower parts, such as petals, sepals, and stamens, in sets of four.
Other Word Forms
Etymology
Origin of tetramerous
1820–30; < New Latin tetramerus < Greek tetramerḗs having four parts. See tetra-, -merous
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.
In the British Adoxa the uppermost flower generally has two calyx-lobes with the other organs tetramerous, while the surrounding flowers generally have three calyx-lobes with the other organs pentamerous.
From The Origin of Species by means of Natural Selection, 6th Edition by Charles Darwin
A flower in which the parts are arranged in twos is called dimerous; when the parts of the whorls are three, four or five, the flower is trimerous, tetramerous or pentamerous, respectively.
From Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" by Various
Thus trimerous fuchsias and tetramerous jasmines may frequently be met with, and Turpin describes a tetramerous flower of Cobæa scandens.
From Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants by Maxwell T. Masters
Rhynchophora, ring-kof′ō-ra, n.pl. a section of tetramerous coleopterous insects: the weevils.—adjs.
From Chambers's Twentieth Century Dictionary (part 3 of 4: N-R) by Various
Dimerous and tetramerous symmetry occur also among dicotyledons.
From Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" by Various
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