1. Of an achromatic color of any lightness intermediate between the extremes of white and black
   - grey [Brit, Cdn], gray [US], greyish [Brit, Cdn]

See also: achromatic, neutral

• hypoglycemic agent
• hypognathous
• hypogonadism
• hypogynous
• hypoid
• hypoid gear
• hypokalemia
• hypolipoproteinemia
• hyponasty
• hyponatremia
• hyponitrous acid
• hyponym
• hyponymy
• Hypopachus
• hypoparathyroidism
• hypophosphoric acid
• hypophosphorous acid
• hypophyseal
• hypophyseal stalk
• hypophysectomise
• hypophysectomised
• hypophysectomize
• hypophysectomized
• hypophysectomy
• hypophysial