1. The altitude of the base of a mass of cloud; measured by a ceilometer

Encyclopedia: Cloud base

• Sphyraena barracuda
• Sphyraenidae
• Sphyrapicus
• Sphyrapicus varius
• Sphyrapicus varius ruber
• Sphyrna
• Sphyrna tiburo
• Sphyrna tudes
• Sphyrna zygaena
• Sphyrnidae
• spic
• spic-and-span
• spica
• spicate
• spiccato
• spiccato bowing
• spice
• spice cake
• spice cookie
• Spice Islands
• spice rack
• spice tree
• spice up
• spice-scented
• spiceberry