urochord

• Существительное, обозначающее примитивное морское животное с мешковидным, несегментированным телом, характеризующееся наличием хорды, которая заметна на личиночной стадии, или, конкретно, хорда личинки оболочника, обычно ограниченная хвостовой областью.

A noun referring to a primitive marine animal with a saclike, unsegmented body, characterized by a urochord that is prominent in the larval stage, or specifically the notochord of a larval tunicate typically confined to the caudal region.

1. C2formalscientific

   A primitive marine animal with a saclike, unsegmented body and a prominent urochord visible in the larval stage.

   Примитивное морское животное

   • The urochord is a fascinating example of early chordate evolution.
   • Marine biologists study the urochord to understand the development of the backbone.
   • The larval urochord displays a distinct tail structure.

   Синонимыtunicateurochordate

2. Larval notochordC2formalscientific

   The notochord of a larval tunicate, typically confined to the tail region.

   Личиночная хорда

   • The urochord provides structural support in the larval tunicate.
   • During metamorphosis, the urochord is reabsorbed.
   • The presence of a urochord is a key characteristic of tunicate larvae.