Also found in: Medical, Acronyms.
Around; about: circumlunar.
[Latin, from circum, around, accusative of circus, circle; see circle.]
around; surrounding; on all sides: circumlocution; circumrotate.
[from Latin circum around, from circus circle]
a prefix with the meaning “round about, around,” found in Latin loanwords, esp. derivatives of verbs that had the general sense “to encompass or surround” (circumference; circumstance) or “to go around” 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 (circumpolar).
A prefix meaning "around", as in circumscribe, to draw a figure around another figure.
pref → um-, um … herum