1. Denoting a quantity consisting of 500 items or units
   - five hundred, 500

1. The 4th letter of the Roman alphabet
   - D

1. A fat-soluble vitamin that prevents rickets
   - vitamin D, calciferol, viosterol, ergocalciferol, cholecalciferol 
2. The cardinal number that is the product of one hundred and five
   - five hundred, 500

Derived forms: Ds, ds

See also: cardinal

Type of: alphabetic character, fat-soluble vitamin, large integer, letter, letter of the alphabet

Part of: Latin alphabet, Roman alphabet

Encyclopedia: D D,l-Isoleucine

• genus Paranthias
• genus Paranthropus
• genus Parascalops
• genus Parasitaxus
• genus Parathelypteris
• genus Parietaria
• genus Paris
• genus Parkia
• genus Parkinsonia
• genus Parmelia
• genus Parnassia
• genus Parochetus
• genus Paronychia
• genus Parophrys
• genus Parrotia
• genus Parrotiopsis
• genus Parthenium
• genus Parthenocissus
• genus Parula
• genus Parus
• genus Paspalum
• genus Passer
• genus Passerina
• genus Passiflora
• genus Pastinaca