चारों ओर या एक रैंपर्ट या अन्य किले के साथ

Verb:

परकोटे अथवा खाई से घेरना, क़िलाबंदी करना, परिभित्ति खींचना,

circumvallate's Usage Examples:

Circumvallate placenta-The existence of a thick, round, white, opaque ring around the periphery of the placenta that limits the expansion of the fetal vessels.

There are two large circumvallate papillae near the base, rather irregular in form, about a quarter of an inch in diameter and half an inch apart.

In most species there are three circumvallate papillae at the base, and the apical portion is generally covered with small, thread-like papillae, some of which in the porcupines become greatly enlarged, forming toothed spines.

circumvallate's Meaning':

surround with or as if with a rampart or other fortification

Synonyms:

fence in, wall, palisade, surround, fence,

Antonyms:

defend, uncover, agree,