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Pronunciation varies by accent · adjective
(malacology, of a shell or fossil) Having a relatively flat spiral shell (intermediate between serpenticonic and spheroconic) in which the whorls touch (evolute to involute) and get larger as they get further from the center, causing the shell to have the profile of a mushroom when viewed from the side, without being so wide or involute that it is cadiconic..
For quotations using this term, see Citations:planorbiconic.
Use planorbiconic when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Planorbiconic means (malacology, of a shell or fossil) Having a relatively flat spiral shell (intermediate between serpenticonic and spheroconic) in which the whorls touch (evolute to involute) and get larger as they get further from the center, causing the shell to have the profile of a mushroom when viewed from the side, without being so wide or involute that it is cadiconic..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
For quotations using this term, see Citations:planorbiconic.
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