词根词缀：-ectomy, -ectome, -ectomize

【来源及含义】Greek: a suffix; cut, excise, surgical removal of

【相关词根词缀】 Related cutting-word units: cast-; castrat-; -cise, -cide; mutil-; put-; sec-, seg-; temno-; -tomy; trunc-.

【同源单词】abdominal hysterectomy, abdominal nephrectomy, abdominohysterectomy, acetabulectomy, acromionectomy, adenectomy

词根词缀：masto-, mast-, -mastia, -masty

【来源及含义】Greek: breast; the front of the human chest and either of two soft rounded organs on each side of the chest in women and men; however, with women the organs are more prominent and produce milk after childbirth; also, a milk-producing gland in mammals that corresponds to the human breast

【相关词根词缀】 Cross references of word families that are related, partially or totally, to: "breast, breasts, chest": mammill-; mammo-; mastoido-; mazo-; pectoro-; pleuro-; sterno-; stetho-; thorac-.

【同源单词】acromastitis, amastia, anisogynecomastia, anisomastia, bimastism, double mastectomy

词根词缀：sub-, suc-, suf-, sug-, sum-, sup-, sur-, sus-, su-

【来源及含义】Latin: under, below, beneath; used as a prefix as shown in various formats below

【相关描述】The prefix sub- often becomes suc- before c: succumb.

The prefix sub- often becomes suf- before f: suffuse.

The prefix sub- often becomes sug- before g: suggest.

The prefix sub- often becomes sum- before m: sumptuous.

The prefix sub- often becomes sup- before p: suppression.

The prefix sub- often becomes sur- before r: surrogate.

The prefix, sub- is often simplified to su- before sp; as seen in suspect, suspend, suspicion, suspension, et al. Before c, p, and t; it is sometimes formed into sus-.

【同源单词】oversufficient, sub specie, sub voce, subabdominal, subaquatic, subaquatics