gaura noun1 •Any flowering plant of the Oenothera sect. Gaura formerly the genus Gaura in the family Onagraceae, including many beeblossoms.Blossoms that flower atop willowy weedy stems such as forget-me-nots, delphiniums, and gauras should be thought of as two-dayers; they don't draw water well or retain preservatives. — 1996 formsgauras