10-letter words that end in in
- pelvic fin — (in fishes) either of a pair of fins on the lower surface of the body, corresponding to the hind limbs of a land vertebrate; ventral fin.
- penicillin — any of several antibiotics of low toxicity, produced naturally by molds of the genus Penicillium and also semisynthetically, having a bactericidal action on many susceptible Gram-positive or Gram-negative cocci and bacilli, some also being effective against certain spirochetes.
- permethrin — a synthetic chemical compound with formula C21H20Cl2O3, effective as an insecticide and against various parasites
- phalloidin — a peptide toxin, responsible for the toxicity of the death cap mushroom, Amanita phalloides
- phenacetin — a white, slightly water-soluble, crystalline solid, C 1 0 H 1 3 NO 2 , used in medicine chiefly as an agent for checking or preventing fever or for relieving pain: withdrawn because of unfavorable side effects.
- phenformin — a biguanide administered orally in the treatment of diabetes to lower blood concentrations of glucose; it has been largely superseded by metformin. Formula: C10H15N5
- phototoxin — Biochemistry. a plant toxin causing an allergic reaction when touched or eaten by a susceptible person or animal subsequently exposed to sunlight.
- phycobilin — any of a class of red or blue-green pigments found in the red algae and cyanobacteria
- phytotoxin — any toxin, as ricin or crotin, produced by a plant.
- picrotoxin — a white, crystalline, bitter, poisonous, central nervous system stimulant, C 3 0 H 3 4 O 1 3 , obtained from the seeds of Anamirta cocculus: used chiefly in the treatment of barbiturate poisoning.
- piston pin — wrist pin.
- plugged in — closely connected; in touch with what is going on; informed; involved: He's one of the more plugged-in advisers at State House.
- plugged-in — closely connected; in touch with what is going on; informed; involved: He's one of the more plugged-in advisers at State House.
- polyolefin — any of a group of thermoplastic, stiff, light, and hard polymers obtained from the polymerization of simple olefins like propylene, used for injection molding, mostly in the automotive and appliance industries.
- pool train — a train operating over a track owned by two or more railway companies.
- poop cabin — a cabin situated immediately beneath the poop deck of a ship.
- portakabin — A Portakabin is a small building that can be moved by truck and that can be used for a short period of time, for example as a temporary office.
- pound coin — a British coin with a value of one pound sterling
- powertrain — (in a motorized vehicle) the whole mechanism by which power is generated and transmitted to the road, surrounding air, water, etc
- precipitin — an antibody that reacts with its specific antigen to form an insoluble precipitate.
- proinsulin — the prohormone of insulin, converted into insulin by enzymatic removal of part of the molecule.
- provitamin — a substance that an organism can transform into a vitamin, as carotene, which is converted to vitamin A in the liver.
- psilocybin — a hallucinogenic crystalline solid, C 1 2 H 1 7 N 2 O 4 P, obtained from the mushroom Psilocybe mexicana.
- quatorzain — a verse of fourteen lines
- quercitrin — A glycoside formed from the flavonoid quercetin and the deoxy sugar rhamnose, a constituent of quercitron dye.
- ragamuffin — a ragged, disreputable person; tatterdemalion.
- raise cain — the first son of Adam and Eve, who murdered his brother Abel. Gen. 4.
- razor-thin — A razor-thin majority or profit is a very small one.
- re-explain — to explain again or in a different way
- red mombin — purple mombin.
- red siskin — a South American finch (Carduelis cucullata) with a black head and red body, sometimes kept as a cage bird
- refuse bin — a bin for the disposal of rubbish and waste
- reichstein — Tadeus [tah-dey-oo s] /tɑˈdeɪ ʊs/ (Show IPA), 1897–1996, Swiss chemist, born in Poland: Nobel Prize in medicine 1950.
- rejoice in — to be glad; take delight (often followed by in): to rejoice in another's happiness.
- riboflavin — a vitamin B complex factor appearing as an orange-yellow, crystalline compound, C 1 7 H 2 0 N 4 O 6 , derived from ribose, essential for growth, found in milk, fresh meat, eggs, leafy vegetables, etc., or made synthetically, and used in enriching flour, in vitamin preparations, and in treating facial lesions.
- ricinolein — the glyceride of ricinoleic acid, the chief constituent of castor oil.
- ride again — to return to a former activity or scene of activity
- rifampicin — a drug used in the treatment of tuberculosis, meningitis, and leprosy
- right join — outer join
- road train — a convoy of motor vehicles.
- road-train — a convoy of motor vehicles.
- rooming-in — an arrangement in some hospitals that enables postpartum mothers to keep their babies with them in their rooms rather than in a separate nursery.
- rough spin — hard or unfair treatment
- rubinstein — Anton [an-ton;; Russian uhn-tawn] /ˈæn tɒn;; Russian ʌnˈtɔn/ (Show IPA), 1829–94, Russian pianist and composer.
- safety pin — pin with covered point
- safety-pin — to secure or affix with a safety pin: to safety-pin a child's mittens to his coat sleeve.
- salting-in — Salting-in is the effect when adding a salt to a solvent containing an organic solute increases the solubility of that solute.
- same again — You say 'same again' when you want to order another drink of the same kind as the one you have just had.
- san martin — José de [haw-se th e] /hɔˈsɛ ðɛ/ (Show IPA), 1778–1850, South American general and statesman, born in Argentina: leader in winning independence for Argentina, Peru, and Chile; protector of Peru 1821–22.
- sash chain — a chain for connecting a vertically sliding window sash with a counterweight.