Short "hint"
A son of Poseidon and Amphitrite, represented as having the head and trunk of a man and the tail of a fish; Astronomy: A moon of Neptune' marine gastropods having a large, spiral, often beautifully colored shell.
Watch out! You may see this word with another pronunciation and its meaning is then different.
Used as a noun, listen here, it means: A son of Poseidon and Amphitrite, represented as having the head and trunk of a man and the tail of a fish; Astronomy: A moon of Neptune' marine gastropods having a large, spiral, often beautifully colored shell. Used as a noun, listen here, it means: A positively-charged particle consisting of a proton and two neutrons, equivalent to the nucleus of an atom of tritium.
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