sinus /sīˈnəs/

1. An air-filled cavity in the bones of the skull, connecting with the nose
2. A narrow cavity through which pus is discharged
3. A cavity
4. An indentation
5. A notch between two lobes in a leaf (botany)

sinupallˈial /sī-nū-/ or sinupallˈiate adjective

(of certain bivalve molluscs) having an indented pallial line for the retraction and expansion of the pallial siphons

sinusīˈtis or sinuīˈtis /sī-nū-/ noun

Inflammation of a sinus, esp one in the skull communicating with the nose

• science fiction
• science park
• science parks
• sciences
• scient
• scienter
• sciential
• scientific
• scientifical
• scientifically
• scientificity
• scientific whaling
• scientise
• scientised
• scientises
• scientising
• scientism
• scientisms
• scientist
• scientistic
• scientists
• scientize
• scientized
• scientizes
• scientizing