Heaviside layer/ʹhevisied/ noun

• slaked lime
• slalom
• slam
• slam-dance
• slam dunk
• slammer
• slander
• slang
• slanging match
• slant
• slant height
• slap
• slap and tickle
• slap-bang
• slapdash
• slap down
• slaphappy
• slaphead
• slap in the face
• slap on the back
• slap on the wrist
• slapper
• slapstick
• slap-up
• slash