| ACETALDEHYDE | • acetaldehyde n. (Organic chemistry) An organic compound, (CH3CHO). Sometimes called ethanal or acetic aldehyde. See… • ACETALDEHYDE n. a chemical compound.
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| EXCHANGEABLE | • exchangeable adj. Able to be exchanged. • exchangeable adj. (Finance) Having an associated right to be exchanged for another form of financial security.
 • exchangeable n. (Finance) Any financial instrument with an associated right to be exchanged for another form of financial security.
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| HAEMATOCELES | • haematoceles n. Plural of haematocele. • HAEMATOCELE n. a cavity containing blood, also HEMATOCELE.
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| HEADTEACHERS | • headteachers n. Plural of headteacher. • head␣teachers n. Plural of head teacher.
 • HEADTEACHER n. a teacher in charge of a school.
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| HENDECAHEDRA | • hendecahedra n. Plural of hendecahedron. • HENDECAHEDRON n. a solid figure having 11 plane faces.
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| MESENCEPHALA | • mesencephala n. Plural of mesencephalon. • MESENCEPHALON n. the middle section of the embryonic brain.
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| METENCEPHALA | • metencephala n. Plural of metencephalon. • METENCEPHALON n. the anterior segment of the developing vertebrate hindbrain.
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| RECHARGEABLE | • rechargeable adj. Able to be recharged, especially of a battery that can be recharged from mains electricity via a charger. • rechargeable n. A device that may be recharged.
 • RECHARGEABLE adj. capable of being recharged.
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| RESEARCHABLE | • researchable adj. That can be researched. • RESEARCHABLE adj. capable of being researched.
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| SPERMATHECAE | • spermathecae n. Plural of spermatheca. • SPERMATHECA n. a receptacle for storing spermatozoa in insects.
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| TELENCEPHALA | • telencephala n. Plural of telencephalon. • TELENCEPHALON n. the anterior subdivision of the embryonic forebrain or corresponding part of the adult forebrain.
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