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The act of embittering; also, that which embitters.

To make bitter; hence, to make distressing or more distressing; to make sad, morose, sour, or malignant. Is there anything that more imbitters the enjoyment of this life than shame South. Imbittered against each other by former contests. Bancroft.

One who, or that which, imbitters.

The act of imbittering; bitter feeling; embitterment.

Of the nature of wormwood. "Absinthian bitterness." T. Randolph.

The bitter principle of wormwood (Artemisia absinthium). Watts.

The common wormwood (Artemisia absinthium), an intensely bitter plant, used as a tonic and for making the oil of wormwood.

Sour, bitter, and harsh to the taste, as unripe fruit; sharp and harsh.

To sour; to imbitter; to irritate.

Sourness of taste, with bitterness and astringency, like that of unripe fruit.

To sour; to imbitter. His thin existence all acidified into rage. Carlyle.

Sharp and harsh, or bitter and not, to the taste; pungent; as, acrid salts.

The quality of being acrid or pungent; irritant bitterness; acrimony; as, the acridity of a plant, of a speech.

Caustic; bitter-tempered' sarcastic; as, acrimonious dispute, language, temper.

Sharpness or severity, as of language or temper; irritating bitterness of disposition or manners. John the Baptist set himself with much acrimony and indignation to baffle this senseless arrogant conceit of theirs. South.

n intoxicating liquor made from an infusion of malt by fermentation and the addition of a bitter, usually hops.

To allay or alleviate; to lighten. [Obs.] That shall alegge this bitter blast. Spenser.

To alleviate; to abate; to mitigate; as, to allay the severity of affliction or the bitterness of adversity. It would allay the burning quality of that fell poison. Shak.

One of the tonsils. Almond oil, fixed oil expressed from sweet or bitter almonds. -- Oil of bitter almonds, a poisonous volatile oil obtained from bitter almonds by maceration and distillation; benzoic aldehyde. -- Imitation oil of bitter almonds, nitrobenzene. -- Almond tree (Bot.), the tree bearing the almond. --…

A bitter purgative principle in aloes.