Seven years of age.

One-year-old; = yearling, adj. 1.

Designating a one-year-old person, animal, or thing; of the age of one year. Cf. old, adj. 4b(a).

As the second element in compounds. That is the specified number of years old; of the specified age. See also many-yeared adj. at many, adj. pron.n.…

Seventy years of age.

(a) = two-year-old, adj. n.; (b) lasting or valid for two years; also transferred.

Aged between fifty and fifty-nine years (inclusive); relating to or characteristic of this age.

Aged between seventy and seventy-nine years (inclusive); (also) characteristic of or belonging to a person who is aged between seventy and…

absol. with ellipsis of years (of age).

spec. (elliptical). The age of thirty; thirty years (of age, old, etc.). So thirty-one, etc.

= three-year-old adj. at sense 2a.

Probable editorial misreading of one-yeared (cf. one-year-old adj. n. at one, adj. n.pron. compounds 4).

Forty years old; (also) = quadragenarian, adj.

see quots.

Of seven years; lasting seven years.

Aged between sixty and sixty-nine years (inclusive); (also) characteristic of or belonging to a person who is aged between sixty and sixty-nine years.

= sexagenarian, adj. Now rare.

= octogenarian, adj. Obsolete.

(a) adj. that is seven years of age; (b) n. a child, animal, or thing that is seven years of age.

= quinquagenarian, adj. 2. Obsolete.

Designating a one-year-old animal (or rarely a one-year-old child); designating an animal in its second year.

That is seventy years old; (also) that is between the ages of seventy and seventy-nine; characteristic of those ages; = septuagenarian, adj. 2. Obs…

Aged between seventy and seventy-nine years (inclusive); (also) characteristic of or belonging to a person who is aged between seventy and…

Aged between eighty and eighty-nine (inclusive); of or relating to an octogenarian or octogenarians.

Looking forty years old.

(a) adj. that is seventeen years of age; (b) n. a person, animal, or thing that is seventeen years of age.

ˈthree-year-ˌold adj. of the age of three years; spec. of horses; also, of three years' standing, that has been such for three years. Also three year…

(attributive) designating a person, animal, or thing that is one week old; cf. old, adj. 4b(a).

Aged a hundred years or more; (also) lasting a hundred years or more.

(a) adj. (attributive) designating a person, animal, or thing that is one day old (cf. old, adj. 4b(a)); (b) n. a bird, animal, etc., which is one…

(a) adj. that is seventy years of age; (b) n. a person of seventy years of age.

Aged between forty and forty-nine years (inclusive); characteristic of a person or persons in their forties.

designating something which is (approximately) a hundred years old.

Aged between ninety and ninety-nine years (inclusive); of or belonging to a nonagenarian or nonagenarians.

= teenage, adj.

Of about thirty years of age.