a. [ L. extinctus, exstinctus, p. p. of extinguere, exstinguere. See Extinguish. ] 1. Extinguished; put out; quenched; as, a fire, a light, or a lamp, is extinct; an extinct volcano. [ 1913 Webster ]

Light, the prime work of God, to me is extinct. Milton. [ 1913 Webster ]

2. Without a survivor; without force; dead; as, a family becomes extinct; an extinct feud or law. [ 1913 Webster ]

3. Specifically: Once existing as a species but now having no living members; -- used of species of living organisms, especially of animals and plants; as, dinosaurs are now extinct; the dodo bird is extinct. [ PJC ]

v. t. To cause to be extinct. [ Obs. ] Shak. [ 1913 Webster ]

n. [ L. extinctio, exstinction: cf. F. extinction. ] 1. The act of extinguishing or making extinct; a putting an end to; the act of putting out or destroying light, fire, life, activity, influence, etc. [ 1913 Webster ]

2. State of being extinguished or of ceasing to be; destruction; suppression; as, the extinction of life, of a family, of a quarrel, of claim. [ 1913 Webster ]

3. Specifically: The ceasing to exist of a species of living organism, such as a plant or animal, whose numbers declined to the point where the last member of the species died and therefore no new members of the species could ever again be born. [ PJC ]

☞ Extinctions have occurred many times throughout the history of life on Earth, and abundant evidence of the prior existence of animals and plants are found as fossils in rock formations many millions of years old. It is believed by some that due to the influence of man on the environment and destruction of habitat, the rate of extinction of species is now higher than at any previous time on this planet. Extinctions of some animals in recent years have actually been reliably recorded, such as that of the dodo bird. A remarkable example of extinction is that of the passenger pigeon (Ectopistes migratorius) in North America, which once numbered in the billions, and the last living member of which species was recorded as dying in captivity in 1914. [ PJC ]

a. [ L. inextinctus, inexstinctus. See Extinct. ] Not quenched; not extinct. [ 1913 Webster ]

See drainable.
See dramatic.
See drinkable.
See durable.
See duteous.
See dutiful.
See earnest.
See eatable.
See ecclesiastical.
See edible.
See elaborate.
See elective.
See elusive.
See emotional.
See emphatic. See employable.
See employable.
See endurable.
See -English.
See entire.
See enviable.
See envious.
See episcopal.
See equable.
See errable.
See escapable.
See evangelical.
See eventful.
See evident.
See exact.
See examinable.
See exceptionable.
See exclusive.
See exemplary.
See exempt.
See exhaustible.
See existent.
See expectable.
See expectant.
See explainable.
See express.
See expressible.
See expugnable.
See extinct.
See factious.
See fadable.
See fain.
See familiar.
See famous.
See fashionable.
See fast.
See fatherly.
See fathomable.
See faulty.
See fearful.
See feasible.
See felicitous.
See felt.
See feminine.
See fermentable.
See festival.
See fine.
See fleshy.
See fluent.
See forcible.
See fordable.
See foreknowable.
See foreseeable.
See forgetful.
See forgivable.
See formal.
See framable.
See fraternal.
See friable.
See frightful.
See frustrable.
See full.
See gainable.
See gainful.
See gallant.
See genial.
See genteel.
See gentle.
See gentlemanlike.
See gentlemanly.
See geometrical.
See ghostly.
See glad.
See godlike.
See good.
See goodly.
See gorgeous.
See grammatical.
See grave.
See guidable.
See guilty.
See habile.
See habitable.
See hale.
See handy.
See hardy.
See harmful.
See hasty.
See hazardous.
See healable.
See healthful.
See healthy.
See heavenly.
See heedful.
See helpful.
See heritable.
[ 1913 Webster ]

[ 1913 Webster ]