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Pronunciation varies by accent · noun
(anatomy) A bony tube which, in some birds, connects the tympanum with the air chambers of the articular piece of the mandible.
Use siphonium when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Siphonium means (anatomy) A bony tube which, in some birds, connects the tympanum with the air chambers of the articular piece of the mandible.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use siphonium where its definition matches the intended context.
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