- leaded light
- liquefied
- liquefiable
- laxative
- latex
- latex agglutination
- latex cell
- latex tube
- latex vessel
- loop self checking
- langenbecks operation
- leave something to be desired
- lillian hellman
- letter security
- laterally
- limnopithecus
- local department
- lit. to break a straw—to safeguard a dear one against an evil eye
- leaf spring
- leaf sheath
- lie at the bottom of
- little sioux river
- little blue heron
- level order
- links
- lit. money—that is god
- livonia
- line drawing display
- lazaretto
- line driver
- lord britten of aldeburgh
- letter stock
- leptostaphyline
- lithopone
- lorisidea
- life tenant
- lucius annaeus seneca
- lucius licinius lucullus
- langbeinite
- lemurinae
- leprous
- labium minora
- lonchocarpus nicou
- langlaufer
- lhotse
- lhasa
- lead polyneuropathy
- lin
- lumped
- Lysol