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Pronunciation varies by accent · adjective
Having a shape resembling part of a ring or incomplete circular band..
The capsule in both families is spherical, with a bistratose wall; the outer cell layer usually bears nodular thickenings[…]; the inner layer (of nearly equally large cells) lacks the regular semiannular or annular thickenings of most other leafy liverworts[…]
Use semiannular when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Semiannular means Having a shape resembling part of a ring or incomplete circular band..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
The capsule in both families is spherical, with a bistratose wall; the outer cell layer usually bears nodular thickenings[…]; the inner layer (of nearly equally large cells) lacks the regular semiannular or annular thickenings of most other leafy liverworts[…]
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