A Grammatical Dictionary of Botanical Latin

Chicken (Eng.noun): a domestic fowl [Gallus gallus domesticus] kept for its eggs or meat, especially a young one. The noun generally including both the male (rooster; young = ‘cockerel’ = less than a year old), and the female (hen = over a year old; young = pullet). The young of both genders are called ‘chicks;’ see fowl; see poultry; cf. aucuparius,-a,-um (adj.A).

Fowl, q.v., a gallinaceous bird kept for its eggs and flesh; a rooster (cock) or hen.

Hen (Eng. noun): “the female of the domestic fowl: esp. one that is more than a year old; the female of any of various other birds (as most gallinaceous or domesticated birds)” (WIII): gallina,-ae (s.f.I), also gallinula,-ae (s.f.I).

Rooster (Eng. noun), q.v. = cock; when young = cockerel.

Gallicinium,-ii (s.n.II), abl.sg. gallinicio: cock-crow, early dawn [> L. gallus + cano + ium] (Glare).

Gallina,-ae (s.f.I), q.v., abl. sg. gallina: a hen, fowl.

Gallina Numidica, gen.sg. Gallinae Numidicae: a guinea-fowl.

Gallinaceus,-i (s.m.II), abl.sg. gallinaceo: a cockerel or young male chicken.

Gallinarium,-ii (s.n.II) a hen-house, hen-coup.

Gallinula,-ae (s.f.I), abl.sg. gallinula: a hen, fowl, a chicken, q.v.

Gallus,-i (s.m.II), abl.sg. gallo: a farmyard cock, dunghill cock.

Pullus,-i (s.m.II), abl.sg. pullo: the young of an animal, esp. of a horse or ass, a foal; a young domestic fowl, a chicken, pullet;

- pullus (s.m.II) gallinaceus, the young of a fowl or hen, a chick.

Pullulus,-i (s.m.II), abl.sg. pullulo: a young nestling or chick.

“Galliformes is an order of heavy-bodied ground-feeding birds that includes turkey, grouse, chicken, New World quail and Old World quail, ptarmigan, partridge, pheasant, francolin, junglefowl and the Cracidae. The name derives from "gallus", Latin for "cock" or "rooster". Common names are gamefowl or gamebirds, landfowl, gallinaceous birds, or galliforms. "Wildfowl" or just "fowl" are also often used for the Galliformes, but usually these terms also refer to waterfowl (Anseriformes)” (Wikipedia, ‘Galliformes’ Jan 2020).