Vigesimo-quarto \Vi*ges"i*mo-quar"to\, n.; pl. {-tos}. A book composed of sheets each of which is folded into twenty-four leaves; hence, indicating more or less definitely a size of book so made; -- usually written 24mo, or 24[deg]. Anito \A*ni"to\, n.; pl. {-tos}. [Sp.] In Guam and the Philippines, an idol, fetich, or spirit.