1. Being sour to the taste
   - acidic, acid, acidulous

See also: sour

• occipital cortex
• occipital gyrus
• occipital lobe
• occipital protuberance
• occipital vein
• occipitomastoid suture
• occiput
• Occitan
• occlude
• occluded
• occluded front
• occlusion
• occlusive
• occult
• occult arts
• occultation
• occultism
• occultist
• occupancy
• occupancy rate
• occupant
• occupation
• occupation licence
• occupation license
• occupational