sessile

• يصف كائناً حياً أو بنية تكون ملتصقة بشكل دائم بالركيزة أو السطح ولا تستطيع الحركة أو الانتقال بحرية. ويشير أيضاً في الاستخدام الطبي إلى شيء ذي سويقة قصيرة جداً أو ملتصق بقاعدته دون سويقة.

Describes an organism or structure that is permanently attached to a substrate and not free to move about.

1. Permanently attachedC1formalscientific

   Fixed in one place; not able to move freely, typically used for organisms like barnacles or corals.

   ملتصق

   • Barnacles are sessile crustaceans that attach to rocks.
   • Coral polyps are sessile in their adult stage.
   • Many marine invertebrates are sessile as adults.

   المرادفاتattachedfixedimmobilenonmotilerootedstationary

   الأضدادfree-livingmobilemotilevagile

2. Without a stalkC1formalscientific

   Attached directly at the base, without a supporting stem or stalk, used for leaves, flowers, or other plant parts.

   لا سويق له

   • The sessile leaves grow directly from the stem.
   • This plant has sessile flowers that lack a pedicel.
   • Sessile acorns are attached directly to the branch.

   المرادفاتstalklessstemless

   الأضدادpedunculatestalked