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Pronunciation varies by accent · noun
The study of feather growth rates as an index of nutritional condition in birds.
Use ptilochronology when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Ptilochronology means The study of feather growth rates as an index of nutritional condition in birds.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use ptilochronology where its definition matches the intended context.
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