Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Having three costae.
from The Century Dictionary.
- In botany, having three ribs from the base; three-ribbed.
- In zoology, having three costæ or raised lines.
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Bot.) Three-ribbed; having three ribs from the base.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Having
three ribs .
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
tri- + costate
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Examples
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M. Delavaud [497] puts on record a case of hypertrophy in the leaves of the common elm, resulting in the formation of an additional lobe and a return to the tricostate type.
Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters
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