rare. [f. FISH sb.1 + -HOOD.] The state or condition of a fish.
1866. F. Buckland, Cur. Nat. Hist., Ser. 3, I. 125. Thousands and hundreds of thousands of your babies have I reared up to fishhood, from the moment when the eye of the infant fish in the albuminous egg first became visible to the delighted piswatcher.
1887. C. S. Wynne, Story of a Kiss, I. vi. 95. A shark in the bloom of early fish-hood, not yet attained to its fullest size and vigour, but quite old enough materially to modify Brians views as to trivial accidents.