Longman Dictionary of Contemporary English
Wiktionary
n. a substance topically applied to the lips of the mouth to relieve chapped or dry lips, angular cheilitis or stomatitis, and cold sores.
WordNet
n. a balm applied to the lips
Wikipedia
Lip balm or lip salve is a wax-like substance applied topically to the lips of the mouth to moisturize and relieve chapped or dry lips, angular cheilitis, stomatitis, or cold sores. Lip balm often contains beeswax or carnauba wax, camphor, cetyl alcohol, lanolin, paraffin, and petrolatum, among other ingredients. Some varieties contain dyes, flavor, fragrance, phenol, salicylic acid, and sunscreens.
The primary purpose of lip balm is to provide an occlusive layer on the lip surface to seal moisture in lips and protect them from external exposure. Dry air, cold temperatures, and wind all have a drying effect on skin by drawing moisture away from the body. Lips are particularly vulnerable because the skin is so thin, and thus they are often the first to present signs of dryness. Occlusive materials like waxes and petroleum jelly prevent moisture loss and maintain lip comfort while flavorants, colorants, sunscreens, and various medicaments can provide additional, specific benefits.
Lip balm can be applied where a finger is used to apply it to the lips, or in a lipstick-style tube from which it can be applied directly.
Lip balm was first marketed in the 1880s by Charles Browne Fleet, though its origins may be traced to earwax. More than 40 years prior to the commercial introduction of lip balm by Fleet, Lydia Maria Child recommended earwax as a treatment for cracked lips in her highly-popular book, Child observed that, "Those who are troubled with cracked lips have found this [earwax] remedy successful when others have failed. It is one of those sorts of cures, which are very likely to be laughed at; but I know of its having produced very beneficial results."
Usage examples of "lip balm".
Toothpaste, insect repellent lip balm, and soap remained at Fifty Mountain.
She scooted in next to her and began applying some flavored lip balm to Kris’.
I zipped myself into a down ski jacket, filled the pockets with tissues and lip balm, pulled on a knit cap, wrapped a scarf around my neck, stuffed my hands into big wool mittens and followed Ranger down the stairs.
Registration papers in an envelope, beneath a small plastic tray divided into compartments containing lip balm, Kleenex, Band-Aids.
Mitch felt woozy and confused already, despite the nose plugs they had manufactured in the motel bathroom out of toilet paper and vanilla-scented lip balm.
Frequently during testimony he licked his lips (Bibi Arhardt wished she could've passed him her lip balm!
Derrick inventoried the contents of the tray-eleven thousand dollars in cash, car keys, pocketknife, lip balm-as his brother stared in disbelief.
All she came up with were lip balm, a watch, and her tiny pocketknife.