13-letter words containing r, e, c, o, n
- apperceptions — Plural form of apperception.
- apple-knocker — Northern U.S. a rustic.
- appreciations — Plural form of appreciation.
- arachnephobia — Misspelling of arachnophobia.
- arc cotangent — the angle, measured in radians, that has a cotangent equal to a given number. Symbol: cot −1. Abbreviation: arc cot.
- archaeobotany — the analysis and interpretation of plant remains found at archaeological sites
- archaeologian — (archaic) An archaeologist.
- architectonic — denoting, relating to, or having architectural qualities
- aristolochene — (organic compound) A bicyclic sesquiterpene produced by certain fungi.
- arsenous acid — a toxic white powder, As2O3, used to make other arsenic compounds, insecticides, and preservatives; white arsenic
- arundinaceous — resembling a reed
- atomic energy — nuclear energy
- atomic number — the number of protons in the nucleus of an atom of an element
- atrociousness — The state of being atrocious.
- auctioneering — Present participle of auctioneer.
- audience room — a room for holding formal interviews or hearings.
- authenticator — a person or thing that authenticates.
- auto-injector — An auto-injector is a hypodermic syringe that you can use to inject yourself with a liquid.
- averruncation — the act of averting or turning away
- backgrounders — Plural form of backgrounder.
- backing store — a computer storage device, usually a disk, that provides additional storage space for information so that it can be accessed and referred to when required and may be copied into the processor if needed
- bacteriogenic — Caused by bacteria.
- bacteriolysin — an antibody which, when it combines with bacterial cells, causes lysis of those cells, thus destroying them
- bacteriotoxin — any toxin that kills bacteria
- bacterization — subjection to bacterial action
- baritone clef — an F clef locating F below middle C on the third line of the staff.
- barnacle code — (programming, humour) Any piece of code (usually a static method) that has been appended to a class where it doesn't logically belong, due to a lack of anywhere else to put it.
- basement-rock — the undifferentiated assemblage of rock (basement rock) underlying the oldest stratified rocks in any region: usually crystalline, metamorphosed, and mostly, but not necessarily, Precambrian in age.
- bedroom scene — a scene in which lovers are in bed
- benching iron — a triangular, pronged plate driven into the ground to provide a temporary bench mark or turning point.
- beta carotene — a yellowish form of carotene: a dietary deficiency of this is associated with a greater risk of certain cancers
- beta-carotene — the most abundant of various isomers of carotene, C 40 H 56 , that can be converted by the body to vitamin A.
- beyond recall — If something is beyond recall, it is no longer possible to remember how it was or to bring it back to its original condition.
- bidirectional — (of a printhead) capable of printing from left to right and from right to left
- bioconversion — the use of biological processes or materials to change organic substances into a new form, such as the conversion of waste into methane by fermentation
- bioenergetics — the study of energy transformations in living organisms and systems
- body piercing — the practice of making holes in the navel , nipples, etc so that jewellery can be worn in them
- body snatcher — (formerly) a person who robbed graves and sold the corpses for dissection
- body-centered — (of a crystal structure) having lattice points at the centers of the unit cells.
- bonanza creek — a stream in W Yukon Territory, Canada, flowing NW to the Klondike River near Dawson: gold strike 1896. 20 miles (32 km) long.
- bone-crushing — powerful or constricting enough to crush one's bones: a bone-crushing handshake.
- booking clerk — A booking clerk is a person who sells tickets, especially in a railway station.
- boraginaceous — of, relating to, or belonging to the Boraginaceae, a family of temperate and tropical typically hairy-leaved flowering plants that includes forget-me-not, lungwort, borage, comfrey, and heliotrope
- boron carbide — a black extremely hard inert substance having a high capture cross section for thermal neutrons. It is used as an abrasive, refractory, and in control rods in nuclear reactors. Formula: B4C
- boston rocker — a type of 19th-cent. American rocking chair, having a curved wooden seat and a high back formed of spindles held in place by a broad headpiece
- bounce around — to spring back from a surface in a lively manner: The ball bounced off the wall.
- brace molding — keel1 (def 6).
- branch office — the local branch of a bank, shop, or other business
- breechloading — loaded at the breech.
- bromocriptine — a dopamine agonist drug which blocks the release of prolactin from the pituitary gland, used in the treatment of Parkinson's disease