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Not undergoing any metamorphosis; as, ametabolic insects.

Earth flax, or mountain flax; a soft silky variety of asbestus.

Containing fossil ammonites.

Born or bred in, of, or near a river. [Obs.] Bailey.

Like an amoeba in structure.

ing a propensity to love, or to sexual enjoyment; loving; fond; affectionate; as, an amorous disposition.

In an amorous manner; fondly.

The quality of being amorous, or inclined to sexual love; lovingness.

Of no particular kind or character; anomalous. Scientific treatises . . . are not seldom rude and amorphous in style. Hare. -- A*mor"phous*ly, adv. -- A*mor"phous*ness, n.

Elevated, -- as a toe, when raised so high that the tip does not touch the ground.

Pertaining to, adapted for, or connected with, both land and water. The amphibious character of the Greeks was already determined: they were to be lords of land and sea. Hare.

Like an amphibious being.

Ambiguous; doubtful. [Obs.] Never was there such an amphibolous quarrel -- both parties declaring themselves for the king. Howell.

Producing fruit of two kinds, either as to form or time of ripening.

Having both ends concave; biconcave; -- said of vertebræ.

Having a structure entirely cellular, and no distinct sexual organs; -- a term applied by De Candolle to the lowest order of plants.

Increasing in size by growth on all sides, as the lichens.

Relating to both parents. [R.]

A fishlike creature (Amphioxus lanceolatus), two or three inches long, found in temperature seas; -- also called the lancelet. Its body is pointed at both ends. It is the lowest and most generalized of the vertebrates, having neither brain, skull, vertebræ, nor red blood. It forms the type of the group Acrania, Leptoca…

One of a tribe of Amphibia, which have both lungs and gills at the same time, as the proteus and siren.