REG'ISTER, n. [Low L. registrum, from regero, to set down in writing; re and gero, to carry.]

1. A written account or entry of acts, judgments or proceedings, for preserving and conveying to future times an exact knowledge of transactions. The word appropriately denotes an official account of the proceedings of public body, a prince, a legislature, a court, an incorporated company and the like, and in this use it is synonymous with record. But in a lax sense, it signifies any account entered on paper to preserve the remembrance of what is done.
2. The book in which a register or record is kept, as a parish register; also, a list, as the register of seamen.
3. [Low L. registrarius.] The officer or person whose business is to write or enter in a book accounts of transactions, particularly of the acts and proceedings of courts or other public bodies; as, the register of a court of probate; a register of deeds.
4. In chimistry and the arts, an aperture with a lid, stopped or sliding plate, in a furnace, stove, &c. for regulating the admission of air and the heat of the fire.
5. The inner part of the mold in which types are cast.
6. In printing, the correspondence of columns on the opposite sides of the sheet.
7. A sliding piece of wood, used as a stop in an organ. Parish register, a book in which are recorded the baptisms of children and the marriages and burials of the parish. Register ship, a ship which obtains permission to trade to the Spanish West Indies, and is registered before sailing. – Encyc.

1. To record; to write in a book for preserving an exact account of facts and proceedings. The Greeks and Romans registered the names of all children born.
2. To enroll; to enter in a list. – Milton.

1. A written account or entry; an official or formal enumeration, description, or record; a memorial record; a list or roll; a schedule.
   
   

   As you have one eye upon my follies, . . . turn another into the register of your own. Shak.

2. To enter in a register] to record formally and distinctly, as for future use or service.
3. To enroll one's name in a register.
4. To enter the name of the owner of (a share of stock, a bond, or other security) in a register, or record book. A registered security is transferable only on the written assignment of the owner of record and on surrender of his bond, stock certificate, or the like.
5. A record containing a list and description of the merchant vessels belonging to a port or customs district.
   
   
   (b)
6. To enroll; to enter in a list.
   
   

   Such follow him as shall be registered. Milton.

   Registered letter, a letter, the address of which is, on payment of a special fee, registered in the post office and the transmission and delivery of which are attended to with particular care.

7. To correspond in relative position; as, two pages, columns, etc. , register when the corresponding parts fall in the same line, or when line falls exactly upon line in reverse pages, or (as in chromatic printing) where the various colors of the design are printed consecutively, and perfect adjustment of parts is necessary.
8. One who registers or records; a registrar; a recorder; especially, a public officer charged with the duty of recording certain transactions or events; as, a register of deeds.
9. That which registers or records.
   
   
   Specifically: (a) (Mech.)
10. A lid, stopper, or sliding plate, in a furnace, stove, etc., for regulating the admission of air to the fuel; also, an arrangement containing dampers or shutters, as in the floor or wall of a room or passage, or in a chimney, for admitting or excluding heated air, or for regulating ventilation.
11. The inner part of the mold in which types are cast.
    
    
    (b)
12. The compass of a voice or instrument; a specified portion of the compass of a voice, or a series of vocal tones of a given compass; as, the upper, middle, or lower register; the soprano register; the tenor register.
    
    

    * In respect to the vocal tones, the thick register properly extends below from the F on the lower space of the treble staff. The thin register extends an octave above this. The small register is above the thin. The voice in the thick register is called the chest voice; in the thin, the head voice. Falsetto is a kind off voice, of a thin, shrull quality, made by using the mechanism of the upper thin register for tones below the proper limit on the scale. E. Behnke.

    (b)