semen(n = noun.body) come, cum, ejaculate, seed, seminal fluid - the thick white fluid containing spermatozoa that is ejaculated by the male genital tract;
is a kind of bodily fluid, body fluid, humor, humour, liquid body substance
has parts: sperm, sperm cell, spermatozoan, spermatozoon
has particulars: milt
Derived form verb inseminate₂

1.  The seed of plants. [1913 Webster]

2.  The seed or fecundating fluid of male animals; sperm. It is a white or whitish viscid fluid secreted by the testes, characterized by the presence of spermatozoids to which it owes its generative power. [1913 Webster]

semen, n. the reproductive fluid of male animals, containing spermatozoa in suspension.

Etymology:
ME f. L semen seminis seed f. serere to sow

N  cause, origin, source, principle, element, occasioner, prime mover, primum mobile, vera causa, author, mainspring, agent, leaven, groundwork, foundation, spring, fountain, well, font, fountainhead, spring head, wellhead, fons et origo, genesis, descent, remote cause, influence, pivot, hinge, turning point, lever, crux, fulcrum, key, proximate cause, causa causans, straw that breaks the camel's back, ground, reason, reason why, why and wherefore, rationale, occasion, derivation, final cause, les dessous des cartes, undercurrents, rudiment, egg, germ, embryo, bud, root, radix radical, etymon, nucleus, seed, stem, stock, stirps, trunk, tap-root, gemmule, radicle, semen, sperm, nest, cradle, nursery, womb, nidus, birthplace, hotbed, causality, causation, origination, production, caused, causal, original, primary, primitive, primordial, aboriginal, protogenal, radical, embryonic, embryotic, in embryo, in ovo, seminal, germinal, at the bottom of, connate, having a common origin, because, behind the scenes, causa latet vis est notissima, felix qui potuit rerum cognoscere causas.