avogadro(n = noun.person) amedeo avogadro - Italian physicist noted for his work on gases; proposed what has come to be called Avogadro's law (1776-1856);
is a kind of physicist

amedeo avogadro, avogadro number

1.  hypothesis(n = noun.communication) - a proposal intended to explain certain facts or observations;
is a kind of proposal
Derived form verb hypothesize₁

2.  hypothesis(n = noun.cognition) possibility, theory - a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena; "a scientific hypothesis that survives experimental testing becomes a scientific theory"; "he proposed a fresh theory of alkalis that later was accepted in chemical practices"
is a kind of concept, conception, construct
is a part of theory
has particulars: hypothetical, gemmule, framework, model, theoretical account, conjecture, speculation, assumption, supposal, supposition, historicism
Derived forms verb hypothecate₂, verb hypothesize₁

3.  hypothesis(n = noun.communication) conjecture, guess, speculation, supposition, surmisal, surmise - a message expressing an opinion based on incomplete evidence;
is a kind of opinion, view
has particulars: divination
Derived forms verb hypothecate₂, verb hypothesize₁, adjective hypothetical₁

1.  A supposition; a proposition or principle which is supposed or taken for granted, in order to draw a conclusion or inference for proof of the point in question; something not proved, but assumed for the purpose of argument, or to account for a fact or an occurrence; as, the hypothesis that head winds detain an overdue steamer. [1913 Webster]
"An hypothesis being a mere supposition, there are no other limits to hypotheses than those of the human imagination." [1913 Webster]

2.  A tentative theory or supposition provisionally adopted to explain certain facts, and to guide in the investigation of others; hence, frequently called a working hypothesis.

hypothesis, n. (pl. hypotheses)
1 a proposition made as a basis for reasoning, without the assumption of its truth.
2 a supposition made as a starting-point for further investigation from known facts (cf. THEORY).
3 a groundless assumption.

Etymology:
LL f. Gk hupothesis foundation (as HYPO-, THESIS)

N  supposition, assumption, assumed position, postulation, condition, presupposition, hypothesis, blue sky hypothesis, postulate, postulatum, theory, thesis, theorem, data, proposition, position, proposal, presumption, divination, conjecture, guess, guesswork, speculation, rough guess, shot, shot in the dark, conjecturality, surmise, suspicion, sneaking suspicion, estimate, approximation (nearness), inkling, suggestion, hint, intimation, notion, impression, bare supposition, vague supposition, loose supposition, loose suggestion, association of ideas, (analogy), metonym, metonymy, simile (metaphor), conceit, idea, thought, original idea, invention (imagination), supposing, given, mooted, postulatory, assumed, supposititious, suppositive, suppositious, gratuitous, speculative, conjectural, hypothetical, theoretical, academic, supposable, presumptive, putative, suppositional, suggestive, allusive, if, if so be, an, on the supposition, ex hypothesi, in the case, in the event of, quasi, as if, provided, perhaps, for aught one knows.

avogadro's hypothesis, nebular hypothesis, planetesimal hypothesis