10-Letter Words Containing: I,S,T,A,S

• a powerful neurotoxin produced by certain dinoflagellates found in red tides; it can accumulate in mollusks that feed on the dinoflagellates and cause food poisoning to humans

• third mast from the bow in a vessel having three or more masts; the after and shorter mast of a yawl, ketch, or dandy

• having or making a high-pitched sound such as that made by a mouse or a rusty hinge

• indulge in fantasies

• portray in the mind

• something contrived to meet an urgent need or emergency

• done or made using whatever is available

• mild chronic depression

• like a pulp or overripe; not having stiffness

• (of soil) soft and watery

• easily squashed; resembling a sponge in having soft porous texture and compressibility