(a) a disorder characterized by symptoms attributed to the heart, esp. palpitations and syncope; (b) heartburn (cf. cardialgia, n.).

Indigestion. Obsolete.

Pain in the chest, esp. in the form of a burning or gnawing sensation; spec. that caused by reflux of acidic stomach contents into the oesophagus…

Indigestion; incomplete digestion; = rawness, n. 2.

= heartburn, n. 2. Now rare.

(un-, prefix1 affix 6.)

Want of digestion; incapacity of or difficulty in digesting food.

The state or quality of being crude; crudity.

Physiology. Of food: The state of being imperfectly digested, or the quality of being indigestible; indigestion; also, in old physiology, imperfect…

Slowness of digestion. (Frequently in 17th cent.)

Premature or overhasty digestion. Obsolete.

Now Orkney and Shetland. = heartburn, n. 2.

the quality of being indigestible; also †inability to digest (obsolete).

= dyspepsia, n. (which is now more usual).

(un-, prefix1 affix 6.)

Lack of digestive power.

Indigestion.

A form of indigestion; heart-burn.

Difficulty or derangement of digestion; indigestion: applied to various forms of disorder of the digestive organs, esp. the stomach, usually…

Pain occurring in the region of the heart; spec. heartburn. Occasionally also: an instance of this.