(physics) A spectrum produced by a diffraction grating whose adjacent slits are one wavelength apart.

plural of insertion order

A citrus tree of the species Citrus ×aurantium, also called Citrus aurantium. / A citrus tree of the species Citrus limetta. / The fruit of these species.

(anatomy) Situated behind the orbit or the eye.

an expression of patriotism.

plural of change order

(chemistry) An azo dye used as an acid-base indicator for titrations involving a weak base

(chemistry) A cationic dye, prepared from coal tar and creosote oil, often used in epifluorescence microscopy.

(organic chemistry) An organic reagent, most commonly used as a tetrasodium salt as an indicator for metal titrations.

plural of organ stop