IST

(redirected from inside trim)
Also found in: Dictionary, Encyclopedia.
Related to inside trim: interior trim

IST

abbr.
insulin shock therapy

IST

infectious sinusitis of turkeys.
References in periodicals archive ?
If you are making up new inside trim, it is easiest to cut new boards that replicate the originals--even if you adopt different window-trim boards, ornate with different edge or corner moldings.