1. Flat on one side and concave on the other

See also: concave

• indivisible by
• indivisibly
• Indo-
• Indo-Aryan
• Indo-Chinese
• Indo-European
• Indo-European language
• Indo-Germanic
• Indo-Hittite
• Indo-Iranian
• Indo-Iranian language
• Indochina
• Indochinese peninsula
• indocile
• Indocin
• indoctrinate
• indoctrination
• indoleacetic acid
• indolebutyric acid
• indolence
• indolent
• indolently
• indomethacin
• indomitability
• indomitable