894 entries found.

early 15c., "numbered, counted," from Latin numeratus "counted out," past participle of numerare "to count, to number," from numerus "a number" (see number (n.)). By 1959 as "acquainted with the basic principles of mathematics" (see numeracy).

Related entries & more
"unacquainted with the basic principles of mathematics," 1959, based on illiterate, with Latin numerus "a number" (see number (n.)). Related: Innumeracy.
Related entries & more
multiplicand (n.)

"number multiplied or to be multiplied by another number," 1590s, from Latin multiplicandus "to be multiplied," gerundive of multiplicare "to multiply, increase" (see multiply).

Related entries & more
No.
as an abbreviation meaning (and pronounced) "number," 1660s, from Latin numero, ablative singular of numerus (see number (n.)).
Related entries & more
numerology (n.)

"study of the occult meaning of numbers, divination by numbers," 1911, a hybrid from Latin numerus "a number" (see number (n.)) + Greek -logia (see -logy). A correct formation would be arithmology, from Greek arithmos "number." Related: Numerological; numerologist.

Related entries & more
drainage (n.)

1650s, "act or process of draining," from drain (v.) + -age. Sense of "the water carried off by a system of rivers" is by 1860. Meaning "system by means of which something is drained" is by 1878.

Related entries & more
divisor (n.)

"a number by which another number is divided," mid-15c., divisour, from Latin divisor, agent noun from dividere "to divide" (see divide (v.)).

Related entries & more
A-1

also A1, A-one, "first-rate," 1837 (in Dickens); a figurative use from Lloyd's of London marine insurance company's system for selective rating of merchant vessels ("Register of British and Foreign Shipping"), where it is the designation for ships in first-class condition. The letter refers to the condition of the hull of the ship itself, and the number rating to the equipment. Also used in equivalent ratings in U.S., where colloquially it is sometimes expanded to A No. 1 (which is attested by 1848 as top rating of entries in an agricultural fair).

Related entries & more