protoxylem /prō-tə-zīˈləm/ (botany)

The first part of the xylem to be formed

• sixty-four-dollar question
• sixty-fourth note
• sixty-fourth notes
• sixty-four-thousand-dollar question
• sixty-nine
• sizable
• sizably
• sizar
• sizars
• sizarship
• sizarships
• size
• sizeable
• sizeably
• sized
• size-exclusion chromatography
• sizeism
• sizeisms
• sizeist
• sizeists
• sizel
• sizer
• sizers
• sizes
• size up