| a prefix with the meaning “round about, around,” found in Latin loanwords, esp. derivatives of verbs that had the general senses “to encompass or surround” (circumference; circumjacent; circumstance) or “to go around” by the means or in the manner specified by the verb (circumnavigate; circumscribe); on this basis forming adjectives in English with the meaning “surrounding” that named by the stem (circumocular; circumpolar). |
| circum- pref. Around; about: circumlunar. [Latin, from circum, around, accusative of circus, circle; see circle.] |
circum- pref.
Around; about: circumduction.
| circum-
A prefix meaning "around", as in circumscribe, to draw a figure around another figure. |