| septan | Denoting a malarial fever the paroxysms of which recur every seventh day, counting the day of the occurrence as the first day, i.e., with a five-day asymptomatic interval. Origin: L. Septem, seven (05 Mar 2000) |
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| septane | <chemistry> See Heptane. Origin: L. Septem seven. Source: Websters Dictionary (01 Mar 1998) |
| septangle | <geometry> A figure which has seven angles; a heptagon. Origin: Septi- + angle. Source: Websters Dictionary (01 Mar 1998) |