/ Dictionary / Index S subject catalog: Meaning and Definition of Find definitions for: sub'ject cat"alog Pronunciation: [key] — Library Science. Library Science. a catalog having entries listed by subject only. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. subject subject complement Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language