词根词缀：circum-

【来源及含义】Latin: around, about, surrounding, closed curve, circling, circular on all sides; literally, "in a circle"

【相关词根词缀】 Related "around, round, surrounding" units: ambi-; ampho-; circ-; cyclo-, -cycle; gyro-; peri-.

【同源单词】Antarctic Circumpolar Current, circuit, circuitous, circuitously, circuitousness, circuitry

词根词缀：nebula-, nebul-

【来源及含义】Latin: mist, fog, cloud, smoke

【相关词根词缀】 Inter-related cross references, directly or indirectly, involving word units dealing with "smoke, smoking": atmido-; capno; Capnomania & Fumimania, Pt. 1; Capnophobia & Fumiphobia, Pt. 1; fumi-; typho-.

【同源单词】circumnebulous, nebula, nebulaphobia, nebulate, nebulated, nebule

词根词缀：-ulous, -ulously

【来源及含义】Latin: a suffix; tending to do, inclined to; full of

【同源单词】acidulous, bibulous, cavernulous, circumnebulous, credible, credulous