13-letter words containing a, c, o, e, l
- leptocephalus — a colorless, transparent, flattened larva, especially of certain eels and ocean fishes.
- lethal factor — a gene that under certain conditions causes the death of an organism.
- leucaemogenic — leukemogenic
- leukaemogenic — relating to the development of leukaemia, or causing leukaemia
- lexical order — the arrangement of a set of items in accordance with a recursive algorithm, such as the entries in a dictionary whose order depends on their first letter unless these are the same in which case it is the second which decides, and so on
- lexical scope — (programming) (Or "static scope") When the scope of an identifier is fixed at compile time to some region in the source code containing the identifier's declaration. This means that an identifier is only accessible within that region (including procedures declared within it). This contrasts with dynamic scope where the scope depends on the nesting of procedure and function calls at run time. Statically scoped languages differ as to whether the scope is limited to the smallest block (including begin/end blocks) containing the identifier's declaration (e.g. C, Perl) or to whole function and procedure bodies (e.g. ECMAScript), or some larger unit of code (e.g. ?). The former is known as static nested scope.
- lexicographer — a writer, editor, or compiler of a dictionary.
- lexicographic — Like a dictionary, relating to lexicography (the writing of a dictionary).
- lexicological — the study of the formation, meaning, and use of words and of idiomatic combinations of words.
- lichenization — any complex organism of the group Lichenes, composed of a fungus in symbiotic union with an alga and having a greenish, gray, yellow, brown, or blackish thallus that grows in leaflike, crustlike, or branching forms on rocks, trees, etc.
- linoleic acid — an unsaturated fatty acid, C 18 H 32 O 2 , occurring as a glyceride in drying oils, as in linseed oil.
- liquefactions — Plural form of liquefaction.
- literacy hour — (in England and Wales) a daily reading and writing lesson that was introduced into the national primary school curriculum in 1998 to raise standards of literacy
- little casino — the two of spades.
- load the dice — anything put in or on something for conveyance or transportation; freight; cargo: The truck carried a load of watermelons.
- local-content — of or relating to the number or percentage of the components of a product, as an automobile, that are manufactured in a specific country: Local-content laws say 90 percent of the components of the car must be made in the U.S. or import restrictions will apply.
- locking plate — a narrow wheel geared to a striking train or other mechanism and having a notched rim engaging with another mechanism permitting it to rotate through a specific arc.
- long-distance — of, from, or between distant places: a long-distance phone call.
- lord advocate — (in Scotland) the chief law officer of the Crown who acts as public prosecutor and is in charge of the administration of criminal justice
- lose track of — to fail to follow the passage, course, or progress of
- lounge jacket — a man's jacket for formal use during the daytime where a suit is not required
- lower chamber — lower house.
- lowerclassman — underclassman.
- lowerclassmen — underclassman.
- lucretia mott — John Raleigh, 1865–1955, U.S. religious leader: Nobel Peace Prize 1946.
- luncheon meat — any of various sausages or molded loaf meats, usually sliced and served cold, as in sandwiches or as garnishes for salads.
- macro-mineral — any mineral required in the diet in relatively large amounts, especially calcium, iron, magnesium, phosphorus, potassium, and zinc.
- macrocephalic — Cephalometry. being or having a head with a large cranial capacity.
- macrocephalus — Alternative spelling of macrocephalous.
- macroclimates — Plural form of macroclimate.
- macrolecithal — megalecithal.
- macromolecule — a very large molecule, as a colloidal particle, protein, or especially a polymer, composed of hundreds or thousands of atoms.
- macronucleate — having a macronucleus.
- magnet school — a public school with special programs and instruction that are not available elsewhere in a school district and that are specially designed to draw students from throughout a district, especially to aid in desegregation.
- magnetic pole — the region of a magnet toward which the lines of magnetic induction converge (south pole) or from which the lines of induction diverge (north pole)
- magniloquence — speaking or expressed in a lofty or grandiose style; pompous; bombastic; boastful.
- magnoliaceous — belonging to the plant family Magnoliaceae.
- major medical — insurance designed to compensate for particularly large medical expenses due to a severe or prolonged illness, usually by paying a high percentage of medical bills above a certain amount.
- malfunctioned — Simple past tense and past participle of malfunction.
- maliciousness — full of, characterized by, or showing malice; intentionally harmful; spiteful: malicious gossip.
- malleoincudal — Of or relating to both the malleus and the incus.
- maltese cross — a cross having four equal arms that expand in width outward.
- manhole cover — a removable metal plate covering a shaft that leads down to a sewer or drain
- manon lescaut — a novel (1731) by Antoine François Prévost.
- many-coloured — having many colours
- master policy — a single policy covering a group of people, typically employees of a company, issued to an employer.
- medical board — a group of people qualified to give opinions on medical matters
- megaloblastic — an abnormally large, immature, and dysfunctional red blood cell found in the blood of persons with pernicious anemia or certain other disorders.
- megalocephaly — Cephalometry, Craniometry. macrocephalic.
- megalomaniacs — Plural form of megalomaniac.