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lamellibranch

noun/ləˈmɛlɪbræŋk/

a bivalve mollusk with two hinged shells

The researchers found several species of lamellibranch in the tidal pools, highlighting the ecological diversity of the area.

bivalvedouble shell
word origin — from New Latin 'lamella' meaning 'thin plate' + 'branchia' meaning 'gills'

lamellibranch, nyctalopia, fiduciary, ichnogram, cadre: meanings and examples

Learn these 5 words from Word Ultra set 258. Each entry includes a definition, example sentence, pronunciation, and synonyms. Use the interactive cards above to practice them.

  1. lamellibranch · noun/ləˈmɛlɪbræŋk/

    a bivalve mollusk with two hinged shells

    The researchers found several species of lamellibranch in the tidal pools, highlighting the ecological diversity of the area.

    Synonyms: bivalve, double shell

    Origin: from New Latin 'lamella' meaning 'thin plate' + 'branchia' meaning 'gills'

  2. nyctalopia · noun/nɪktəˈloʊpiə/

    difficulty seeing in dim light or at night

    After several years of driving at night, he began to notice that his nyctalopia made it increasingly difficult to see in the dark.

    Synonyms: night blindness, poor night vision, scotopia

    Origin: The term comes from the Greek words 'nyktos' meaning 'night' and 'lopsi' meaning 'sight'.

  3. fiduciary · noun/fɪˈdjuːʃˌɛri/

    a person or organization entrusted to manage assets or interests for another party

    The financial advisor acted as a fiduciary for his clients, ensuring their investments were managed with their best interests in mind.

    Synonyms: trustee, agent, guardian

    Origin: Latin 'fiduciaris' meaning 'trustee' or 'dependent on trust'

  4. ichnogram · noun/ɪk.nə.ɡræm/

    a geological map that shows the tracks or traces of organisms

    The ichnogram revealed various trails left by ancient burrowing animals, providing insight into their behavior and the environment they inhabited.

    Synonyms: ichnofossil, trace fossil, trackway

    Origin: from Greek 'ichnos' meaning 'track' and 'gramma' meaning 'something written' or 'drawing'

  5. cadre · noun/ˈkæd.ər/

    a small group of people specially trained for a particular purpose or profession

    The organization relies on a dedicated cadre of experts to implement its community outreach programs effectively.

    Synonyms: staff, group, team

    Origin: French 'cadre', meaning 'frame', from Latin 'quadrus' meaning 'square'.