1. Not required by rule or law
   - nonmandatory

See also: optional

• velvet bent grass
• velvet flower
• velvet grass
• velvet osier
• velvet plant
• velvet sumac
• velvet worm
• velvet-textured
• velveteen
• velvetleaf
• velvetweed
• velvety
• velvety-furred
• velvety-haired
• velvety-plumaged
• velvety-skinned
• vena
• vena anastomotica
• vena angularis
• vena appendicularis
• vena arcuata renis
• vena auricularis
• vena axillaris
• vena azygos
• vena basalis