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/ˈsɛp(ə)l/ · noun
(botany) One of the component parts of the calyx, particularly when such components are not fused into a single structure..
1836, The Family Magazine, Or Monthly Abstract of General Knowledge, Volume III, Redfield & Lindsay, page 367, When the sepals are distinct, or separate from each other, the calyx is said to be polysepalous.
The sepal and the petal are essentially leaf-like in form and anatomy but generally simpler in detailed structure than a foliage leaf.
In tomato, for example, the first sepal primordium is formed as an outgrowth at the periphery of the apex and the subsequent sepal primordia are initiated in a helical fashion at an angle of approximately 137° from the previous one.
Use sepal when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Sepal means (botany) One of the component parts of the calyx, particularly when such components are not fused into a single structure..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
1836, The Family Magazine, Or Monthly Abstract of General Knowledge, Volume III, Redfield & Lindsay, page 367, When the sepals are distinct, or separate from each other, the calyx is said to be polysepalous.
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