Referring to organisms, particularly plants or certain animals, that are fixed in one place; not free to move.

In immunology, refers to antibodies that are not freely floating in the bloodstream but are bound to a surface.

ये एंटीबॉडीज जो रक्तप्रवाह में स्वतंत्र रूप से नहीं होतीं, पर एक सतह पर बंधी होतीं हैं।

English Usage: The sessile antibody was crucial for the experiment's success.

Hindi Usage: स्थिर एंटीबॉडी प्रयोग के सफलता के लिए महत्वपूर्ण थी।