| BRACHYPINAKOID | • BRACHYPINAKOID n. a pinakoid or prism parallel to the brachydiagonal. | 
| BRACHYPINAKOIDS | • BRACHYPINAKOID n. a pinakoid or prism parallel to the brachydiagonal. | 
| CLINOPINAKOID | • CLINOPINAKOID n. a form consisting of two faces parallel to the clinoaxis and the vertical axis, also CLINOPINACOID. | 
| CLINOPINAKOIDS | • CLINOPINAKOID n. a form consisting of two faces parallel to the clinoaxis and the vertical axis, also CLINOPINACOID. | 
| MACROPINAKOID | • MACROPINAKOID n. a crystalline pinacoid which runs parallel to the longer horizontal axis, also MACROPINACOID. | 
| MACROPINAKOIDS | • MACROPINAKOID n. a crystalline pinacoid which runs parallel to the longer horizontal axis, also MACROPINACOID. | 
| OBELISKOID | • obeliskoid adj. Resembling an obelisk. • OBELISKOID adj. shaped like an obelisk, also OBELISCOID.
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| ORTHOPINAKOID | • ORTHOPINAKOID n. in monoclinic crystals, a form consisting of two faces parallel to the orthodiagonal and the vertical axis. | 
| ORTHOPINAKOIDS | • ORTHOPINAKOID n. in monoclinic crystals, a form consisting of two faces parallel to the orthodiagonal and the vertical axis. | 
| PINAKOID | • pinakoid n. Alternative form of pinacoid. • PINAKOID n. a type of crystal face, also PINACOID.
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| PINAKOIDAL | • pinakoidal adj. Alternative form of pinacoidal. • PINAKOIDAL adj. denoting a type of crystal face, also PINACOIDAL.
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| PINAKOIDS | • pinakoids n. Plural of pinakoid. • PINAKOID n. a type of crystal face, also PINACOID.
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| THYLAKOID | • thylakoid n. (Biology) a folded membrane within plant chloroplasts from which grana are made, used in photosynthesis. • THYLAKOID n. any of a membranous disk of lamellae within plant chloroplasts.
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| THYLAKOIDS | • thylakoids n. Plural of thylakoid. • THYLAKOID n. any of a membranous disk of lamellae within plant chloroplasts.
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