noun | butterfly-shaped bone at the base of the skull

sphe-noid (8 letters | 2 syllables)

os sphenoidale | sphenoid bone

bone | os

spheroid

siphoned

sphenoid bone | sphenoid fontanel | sphenoid fontanelle

sphenoid.com | sphenoid.net | sphenoid.org

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14 (International English) | 14 (North American English)