| Subject | English | Dutch |
| industr., construct., chem. | interstitial opaque coating | absorberende tussenlaag |
| cultur., commun. | micro-opaque | microkaart |
| cultur. | microscopy on opaque base | microreproduktie op een ondoorschijenende drager |
| earth.sc. | opaque body | ondoorzichtig lichaam |
| commun. | opaque copy | opzichtkopie |
| med. | opaque cornea | tunica albuginea corporum oculi (cornea opaca) |
| med. | opaque cornea | cornea opaca (cornea opaca) |
| industr., construct. | opaque drawing paper | opaak tekenpapier |
| industr., construct., met. | opaque glass | opaak glas |
| construct. | opaque glass | melkglas |
| chem. | opaque glaze | opaak glazuur |
| earth.sc., chem. | opaque ice | mat ijs |
| commun., earth.sc. | opaque ink | dekkende drukinkt |
| lab.law. | opaque rubber glove | beschermingshandschoen tegen ioniserende straling |
| industr. | opaque wood stain | dekkende houtbeits |
| earth.sc. | radio-opaque | radiopaak |
| med. | substance opaque to X-rays | roentgencontraststof |
| construct. | walls: opaque parts or double glazing | ondoorschijnend gedeelte buiten: thermische isolatie,binnen:vlasvezelpanelen,b)dubbele beglazing |
