thallium
— Noun
– English
~ a soft grey malleable metallic element that resembles tin but discolors on exposure to air; it is highly toxic and is used in rodent and insect poisons; occurs in zinc blende and some iron ores
thalloid
— Adjective
– English
~ of or relating to or resembling or consisting of a thallus
Thallophyta
— Noun
– English
~ used only in former classifications: comprising what is now considered a heterogeneous assemblage of flowerless and seedless organisms: algae; bacteria; fungi; lichens
thallophyte
— Noun
– English
~ any of a group of cryptogamic organisms consisting principally of a thallus and thus showing no differentiation into stem and root and leaf
thallophytic
— Adjective
– English
~ pertaining to or characteristic of thallophytes
thallus
— Noun
– English
~ a plant body without true stems or roots or leaves or vascular system; characteristic of the thallophytes