costa

• اسم يشير إلى بنية ضلعية الشكل في النباتات أو الحيوانات، مثل العرق الأوسط في الورقة، أو عرق متضخم في جناح الحشرة، أو إحدى الأضلاع الاثني عشر المزدوجة المنحنية الخارجة من العمود الفقري عند الإنسان ومعظم الفقاريات.

A noun referring to a riblike structure in plants or animals, such as a middle rib of a leaf, a thickened vein of an insect wing, or one of the 12 pairs of curved bones extending from the spine in humans and most vertebrates.

1. Rib (anatomy)C1formalscientific

   Any of the 12 pairs of curved bones extending from the spine to or toward the sternum in humans and similar bones in most vertebrates.

   ضلع (تشريح)

   • The patient fractured a costa in the accident.
   • The human skeleton includes 12 pairs of costae.
   • The doctor examined the costa for signs of damage.

   المرادفاتrib

2. Rib-like structure (biology)C2formalscientific

   A riblike part of a plant or animal, such as the middle rib of a leaf or a thickened vein of an insect wing.

   بنية ضلعية

   • The costa of the leaf provides structural support.
   • In entomology, the costa is a prominent vein in the insect wing.
   • The plant's costa is clearly visible under the microscope.

   المرادفاتmidribnerveribvein