13-letter words that end in al
- intratropical — Within the tropics.
- isostructural — (of two substances) having the same crystal structure but not necessarily a similar chemical composition.
- jebel toubkal — a mountain in SW Morocco: highest peak in the Atlas Mountains. 13,671 feet (4167 meters).
- kwazulu-natal — a province of NE South Africa; replaced the former province of Natal in 1994: service industries. Capital: Pietermaritzburg. Pop: 10 267 300 (2011 est). Area: 92 180 sq km (35 591 sq miles)
- labyrinthical — Labyrinthine; like or relating to a labyrinth.
- lackadaisical — without interest, vigor, or determination; listless; lethargic: a lackadaisical attempt.
- lateral canal — a canal running parallel to a stream that is inconvenient or impossible to navigate.
- lechosos opal — a variety of opal having a deep-green play of color.
- legislatorial — of or relating to a legislator, legislature, or legislation; legislative.
- lexicological — the study of the formation, meaning, and use of words and of idiomatic combinations of words.
- lexigraphical — Misspelling of lexicographical.
- light mineral — any rock-forming mineral that has a specific gravity of less than 2.8 and is generally light in color.
- line integral — the limit, as the norm of the partition of a given curve approaches zero, of the sum of the product of the length of the arcs in the partition times the value of the function at some point on each arc.
- lord temporal — a member of the House of Lords who is not a member of the clergy.
- macro-mineral — any mineral required in the diet in relatively large amounts, especially calcium, iron, magnesium, phosphorus, potassium, and zinc.
- macrodiagonal — the longer of two diagonals
- macrolecithal — megalecithal.
- macroscopical — Macroscopic.
- magistratical — Of, pertaining to, or proceeding from, a magistrate; having the authority of a magistrate.
- main diagonal — a diagonal line or plane.
- major general — a military officer ranking next below a lieutenant general and next above a brigadier general.
- 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.
- malacological — Of, or pertaining to, malacology.
- malfunctional — Not functioning as intended.
- malleoincudal — Of or relating to both the malleus and the incus.
- matripotestal — of or relating to the authority exercised by a mother or a mother's blood relatives.
- maxillodental — Relating to the jaw and teeth.
- maxillofacial — of, relating to, or affecting the jaws and the face: maxillofacial surgery.
- maximal ideal — an ideal in a ring that is not included in any other ideal except the ring itself.
- meningococcal — (medicine) Of, pertaining to, or caused by meningococci.
- mephobarbital — The drug methylphenobarbital.
- metacercarial — relating to, involving, or caused by a metacercaria or metacercariae
- metafictional — Of, relating to, or being metafiction.
- metallurgical — the technique or science of working or heating metals so as to give them certain desired shapes or properties.
- methodistical — Methodistic.
- methylglyoxal — pyruvic aldehyde.
- microcosmical — Alternative form of microcosmic.
- microcultural — Of or pertaining to a microculture.
- microfilarial — relating to, or emanating from, microfilariae
- microlecithal — having a small amount of yolk, as certain eggs or ova.
- micrometrical — Micrometric; relating to micrometry or a micrometer.
- microscopical — so small as to be invisible or indistinct without the use of the microscope: microscopic organisms. Compare macroscopic.
- microsurgical — Of or pertaining to microsurgery.
- mine disposal — the removal, disarming, or destruction of explosive mines
- mineralogical — Relating to mineralogy.
- missiological — Of or pertaining to missiology.
- mitochondrial — (cytology) Of, or relating to mitochondria.
- mixed crystal — a crystal consisting of a solid solution of two or more distinct compounds
- molluscicidal — relating to a preparation that kills molluscs
- monogynoecial — (of a fruit) developing from a single pistil.