| lumbricalis |
one of four small muscles in the palm of the hand that are connected by tendons to each of the fingers. [2 definitions] |
| lumbricoid |
resembling an earthworm. [2 definitions] |
| lumen |
a unit of measure of the flow of light, equal to the flow from a light source of one-candle strength, measured on a unit surface at a unit distance. (abbr.: lm) [2 definitions] |
| luminance |
the state or quality of emitting or reflecting light. [2 definitions] |
| luminary |
a body that radiates or reflects light, such as the sun or moon. [3 definitions] |
| luminesce |
to emit light at a fairly cold temperature; be or become luminescent. |
| luminescence |
the production of light not caused directly by heat, as by chemical reaction. (Cf. incandescence.) [2 definitions] |
| luminescent |
of or characterized by luminescence. |
| luminiferous |
producing or transmitting light. |
| luminosity |
the state of being luminous. [2 definitions] |
| luminous |
giving off light; glowing. [3 definitions] |
| lummox |
(informal) someone who is especially clumsy, slow, and unintelligent. |
| lump |
a mass or pile, esp. a small one. [7 definitions] |
| lumpen |
designating uprooted and disenfranchised people who have come to be regarded as the lowest in their social class. |
| lumpish |
resembling or having the characteristics of a lump. [3 definitions] |
| lump sum |
a sum of money, esp. a total amount, that is paid at one time rather than in installments. |
| lumpy |
full of or covered with lumps. [2 definitions] |
| lumpy jaw |
see "actinomycosis." |
| Luna |
in Roman mythology, the goddess of the moon; Selene. |
| lunacy |
mental derangement; insanity. [2 definitions] |
| luna moth |
a large pale-green North American moth with a crescent-shaped spot on each wing and long tail-like projections on the hind wings. |