fucoid fucoid /ˈfjuːkɔɪd/

noun

1. Any of various algae of the family Fucaceae  ( fucoid , fucoid algae )
   any of various algae of the family Fucaceae
   
   
2. A fossilized cast or impression of algae of the order Fucales  ( fucoid )
   a fossilized cast or impression of algae of the order Fucales
    The fucoid imprint was a clear indication of ancient algae once thriving in that location.
   The fucoid imprint was a clear indication of ancient algae once thriving in that location.
   
   

 prism prism /ˈprɪzəm/

noun

1. Optical device having a triangular shape and made of glass or quartz; used to deviate a beam or invert an image  ( optical prism , prism )
   optical device having a triangular shape and made of glass or quartz; used to deviate a beam or invert an image
   
   
2. A polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms  ( prism )
   a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms
    Light passing through a prism splits into its constituent colors, creating a rainbow effect.
   Light passing through a prism splits into its constituent colors, creating a rainbow effect.
   
   

 madriporian coral madriporian coral /ˌmædrɪˈpɔːriən ˈkɔːrəl/

noun

1. Corals having calcareous skeletons aggregations of which form reefs and islands  ( madrepore , madriporian coral , stony coral )
   corals having calcareous skeletons aggregations of which form reefs and islands
   
   

 tissue tissue /ˈtɪʃuː/

noun

1. () Part of an organism consisting of an aggregate of cells having a similar structure and function  ( tissue )
   part of an organism consisting of an aggregate of cells having a similar structure and function
     The biopsy revealed abnormal tissue growth in the patient's lung.
   The biopsy revealed abnormal tissue growth in the patient's lung.
   
   
2. () A soft thin (usually translucent) paper  ( tissue paper , tissue )
   a soft thin (usually translucent) paper
    She reached for a tissue to wipe her tears.
   She reached for a tissue to wipe her tears.
   
   

verb

1. (handicraft) create a piece of cloth by interlacing strands of fabric, such as wool or cotton  ( tissue , weave )
   (handicraft) create a piece of cloth by interlacing strands of fabric, such as wool or cotton
    Tissue textiles
   tissue textiles