The optical analogue of radar, using intense pulses of laser light to measure the composition and structure of the atmosphere.

A female given name from Ancient Greek, a less common spelling of Lydia.

(pharmacology) The opioid analgesic drug pethidine.

plural of lido

(pharmacology) A crystalline compound C₁₄H₂₂N₂O that is used in the form of its hydrochloride as a local anesthetic and as an antiarrhythmic agent.

(rare, medicine) A specialized speculum used to hold eyelids open, for example during LASEK eye surgery.

plural of lidlock

A pet form of the female given name Lydia.

Resembling or characteristic of a lid.

A surname.