plural of Wood's lamp

An optical filter glass that allows ultraviolet and infrared light to pass through while blocking most visible light.

Synonym of Wood's lamp

plural of Wood's light

(informal) An erection of the penis upon waking up, usually unrelated to erotic thoughts or dreams. / (dialectal) Kindling used to light a fire in the morning.

(idiomatic) A person who is innocent, naive, inexperienced, or helpless, especially with respect to an unfamiliar situation or environment.

(idiomatic) Out of peril; likely to recover or prevail over trouble; finished with the worst or most threatening part of a problem or illness.

(organic chemistry) The compound methyl alcohol or methanol.

(ornithology) The capercaillie, Tetrao urogallus.

(idiomatic, US) To take a customary action to ward off some misfortune that is believed to be attracted by a presumptuous statement.