【化】 interstitial defect
clear; clearance; gap; interval; space
【化】 back lash; clearance; gap; play; slack
【医】 clearance; diastem; diastema; interspace; space; spatia; spatium
blemish; bug; defect; drawback; flaw; limitation; objection; vice
【化】 imperfection
【医】 defect; vitium
【经】 defective