Webster’s Revised Unabridged Dictionary · 1913
Oblong
Ob′long, a. [L. oblongus; ob (see Ob-) + longus long: cf. F. oblong.] Having greater length than breadth, esp. when rectangular.
Ob′long, n. A rectangular figure longer than it is broad; hence, any figure longer than it is broad.
The best figure of a garden I esteem an oblong upon a descent. Sir W. Temple.