A faint anomaly in the room’s air currents told him there was a secret exit to their right behind the filing cabinets.
(See Missionaria Protectiva.) PARACOMPASS: any compass that determines direction by local magnetic anomaly; used where relevant charts are available and where a planet’s total magnetic field is unstable or subject to masking by severe magnetic storms.
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We consider the accident an anomaly — not a reason to change standard procedures.
They rate a nuclear event from 1 (an anomaly) to 7 (a major accident).