analogous

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Similar or alike in such a way as to permit the drawing of an analogy.
2. adj. Biology Similar in function but not in structure and evolutionary origin.

Century Dictionary and Cyclopedia

1. In general, having analogy; corresponding (to something else) in some particular or particulars, while differing in others; bearing some resemblance or proportion: sometimes loosely used for similar. Thus, there is something in the exercise of the mind analogous to that of the body; animal organs, as the wing of a bird and that of a bat, which perform the same function, though different in structure, are analogous. See 4, below.
2. Specifically In chem., closely alike, but differing in some degree as to each of the more prominent characters.
3. In botany, resembling in form but not in plan of structure. Thus, the spur of a larkspur is analogous to one of the five spurs of a columbine, but they are not homologous, for the one is a sepal and the other a petal. A. Gray.
4. In biology, similar physiologically but not anatomically; like in function but not in structure: the opposite of homologous. See analogy, 5.
5. In logic, from Albertus Magnus down to modern writers, applied to terms which are homonymous or equivocal in a special way, namely, those in which the identity of sound is not accidental, but is based upon a trope or upon some other reason.
6. In all senses used with to, sometimes with. Synonyms Correspondent, similar, like.

Wiktionary

1. adj. Having analogy; corresponding to something else; bearing some resemblance or proportion;—often followed by "to".

GNU Webster's 1913

1. adj. Having analogy; corresponding to something else; bearing some resemblance or proportion; -- often followed by to.

WordNet 3.0

1. adj. similar or equivalent in some respects though otherwise dissimilar
2. adj. corresponding in function but not in evolutionary origin